It’s interesting that he went to an ice cream place to buy coffee beans. (Though I am aware of places even less likely selling their own branded bags of coffee.) I wonder if he could simply ask them where they got the blend? If they import, blend, roast, and grind it themselves, like a coffee shop, then whoever did that probably knows all about coffee, but perhaps not the soda jerk.

Among all these discussions of “could we do it”, I guess I’m glad we have someone asking “should we do it”.
I’ll be your Dr. Ian Malcolm.

A pentagram may summon a hungry daemon or two, who (unfortunately for you) will probably not be satisfied with a couple of slices of pizza, but due to the flat, essentially Euclidean nature of the pie you will at least avoid getting encysted in the necrotic folds of the womb of Nehilim; worst case, you’re only facing an eternity of unimaginable torment.
Be careful what you ask for unless you are really familiar with paradoxes.
Stranger

NOOOOOOO!!!
Small pizzas get cut pie style, large pizzas get cut square style. You can’t argue with Chicagoans about pizza, so stop it.

Dibs on the 5 easy pieces!
Hold the chicken.
I love the Dope. Where else can you read an OP about getting a 10-slice pizza and then get to watch 3-D pentagons? Seriously, you guys rock.
But if Pizza Hut’s fully automated pizzeria catches on, we may not be able to get any variation from the standard 8-slice.
Customer: And can I get that cut into 10 slices?
Automated response: I’m sorry. I didn’t get that. You ordered one large pepperoni pizza. To add to your order, press 1. If your order is complete, press 2. For information on the nutritional content of any of our products, press 3 or go to notrealpizza.com.
I didn’t expect 10 perfectly/equally sized slices but thought they would be reasonably close to being the same size.
I worked in a pizza place while attending collage and if it was requested to be cut into squares it was called “party style”. I also didn’t have much of an issue cutting it into 4, 6, 8, 10, 12 slices, whatever the customer wanted if it was not the normal number of slices for that size, just eyeball it and get the sizes close. That is why I didn’t think it would be so difficult to cut it 1 more time to get 10 slices.
I’m good friends with a guy who owns a pizza place which serves a large college campus and am going to suggest a Halloween promotion: cut your pies into a pentagram for an extra $2. Bet the kids would go crazy ordering pizzas for the lulz.

That is why I didn’t think it would be so difficult to cut it 1 more time to get 10 slices.
“Cut it one more time” is not the same as “cut it into 10 slices the same size.”
I worked at a Straw Hat Pizza in 1981 and was never asked for a square sliced pizza and had never heard of such a thing. We’d occasionally get weird requests and would always accommodate them. I would have done my best with a ten slice pizza and I’m sure that I could have gotten it reasonably close.

“Cut it one more time” is not the same as “cut it into 10 slices the same size.”
Exactly. It’s going to be reasonably easy (and fast) for the person doing the cutting to make cuts that, effectively, bisect the pizza more-or-less evenly, which is the sort of cut that you’d make when cutting it into 2, 4, or 8 pieces of the same size – and those are the kind of cuts that said person is doing dozens of times every shift. 10 same-sized slices is certainly doable, but would require some thought, and at least a little bit of knowledge of geometry.
I think I would just ask if they can just send it out without cutting it at all. Then I’ll cut it myself.
Or maybe order two of the next size smaller and have pizza for breakfast the next morning.

I think I would just ask if they can just send it out without cutting it at all. Then I’ll cut it myself.
This would be my solution.
Right? I’ll toss my brain power down on the slab with anyone here and feel confident I can hold my own and I’ve been a truck driver, courier, warehouse worker, done retail, worked in convenience stores and worked in various call centers–all of which are considered to be “menial” jobs. Some people work to live rather than living to work and blue collar work used to pay pretty fucking well and didn’t involve being micromanaged by asshole bosses who think their shit don’t stink because they 2.3 GPAed their way through a state college. I’ve worked in plenty of places where I was literally the smartest person in the building but wasn’t the boss on account of I’m also smart enough to know that being salaried and working 80 hours a week is a shitty way to go through life. A lot of people buy the “prestige” angle and line up to be buttfucked in this manner but I will never be one of them.

I think I would just ask if they can just send it out without cutting it at all. Then I’ll cut it myself.
That, or get the 8-slice pizza and cut three of the slices in half. That way, all 5 people can have an initial serving of 1 slice equal to 1/8 of the pizza. That leaves 6 small second servings, which people can eat or not. Assuming different people have different appetite levels, you can accommodate them a bit better.

“Cut it one more time” is not the same as “cut it into 10 slices the same size.”
Isn’t implied when you order a pizza that is cut 4 times that you would get 8 similar sized slices of pizza? So if I ask for 1 more cut (5 cuts) it would also be implied that those pieces would be of similar size. With your thinking if a worker was told to cut it 4 times, those 8 slices could vary wildly in size because the specific instructions given did not include “cut it 4 times and make the pieces the same size”.

Isn’t implied when you order a pizza that is cut 4 times that you would get 8 similar sized slices of pizza? So if I ask for 1 more cut (5 cuts) it would also be implied that those pieces would be of similar size.
It certainly might be implied, but cutting a pizza into 10 similarly-sized slices is not nearly as straightforward as doing so with a number of slices that are a factor of 2 (2, 4, 8, 16, etc.)
I find it funny that the ten slices are meant for five people. Even if the slices are quite different you can share them fairly by pairing them big + small, biggish + smallish, about rightish + about rightish…

That, or get the 8-slice pizza and cut three of the slices in half. That way, all 5 people can have an initial serving of 1 slice equal to 1/8 of the pizza. That leaves 6 small second servings
Each person can have one of these. Then the remaining one can be cut into sixths. Each person can then have one of those, and the one left over can be divided into sixths again. Continue ad infinitum, and you’ll never run out of pizza! (I think this is how Zeno did it.)

Except that the course grind (common for immersion brewing) has a picture of a french press.
But that doesn’t help when the high school cashier and the kids working in the back don’t know what it is.
ETA, I see a few people all ready mentioned this.
This is a great reminder of why I usually try not to make specific examples that someone will just pick apart. I should have just posted the link to the picture of a grinder and said ‘Sometimes people ask for a grind that isn’t shown on here’.