Oh no. My SO drinks wine from a rock glass and that alone unnerves me.
Ironically, I have never done this but my wife does.
Carton? What year is this?
I have found this to be the case. But then, I mostly only have milk with cereal, so I need a bowl anyway.
For any other beverage in the fridge, though? I’m a bachelor, why not? And it saves one more dish needing to be washed.
No, that would be gross. If I am just taking a few drinks out of a carton or plastic bottle of some kind, I just drink what I want and pour all the rest down the sink.
I don’t understand what you mean. Milk comes in either cardboard cartons or plastic jugs depending on the brand.
And no, I’d never do this and it’s extremely gross. I’ve only ever seen it happen on TV/film.
I can’t remember the last time I had, or even saw, milk (regular cow’s milk) in a cardboard carton.
I learned to drink milk out of the carton in elementary school, along with my abc’s, basic arithmetic and the pledge of allegiance. How can it be wrong? 
But no, unless it is something I know that only I am going to drink I use a glass
Do you live in Canada? I know they have the whole weird bagged milk thing.
This is just a random image I found showing a typical US supermarket dairy aisle:
Not since I was a kid, and I’m still ashamed about that.
No, central Illinois. This could be something that varies by region. None of the labels in that image look at all familiar to me.
This is a typical aisle from where I’m from in Australia.
I don’t drink milk from the carton because (a) I don’t use milk for drinking and (b) we don’t buy cartons of milk. But I have had a glug of orange juice out of a jug before putting it back in the fridge.
EDIT: I think I’ve done it with a carton of eggnog.
That’s a thing?!? That sounds friggin’ delicious. (And probably expensive.)
A what now … ? Was it carved out of an actual stone?
If only. No, a tumbler suitable only for spirits served on the rocks
It’s a CASE, Dear. Beer comes in a CASE.
I don’t pee in the shower. That’s Disgusting!
Don’t be clobbering your milk. That’s just mean.
It’s clabbering. Otherwise, curdle.
Actually clabbered whole milk is great for corn bread.
You don’t have someone deliver it in a glass bottle to your doorstep every morning?
Savages.
They deliver in cartons to our doorstep every other week (Monday night/Tuesday morning). We also sometimes get yogurt or other items from them if we request. Including egg nog during the holidays.
They used to leave a little Milk Bone treat for our dog, so much that when she knows the milk delivery folks came age freaks out, but I think they have a new person because for the last month they haven’t done that.
I sometimes drink vodka/rocks from my coffee mug trying to fool my gf, but she’s onto my shenanigans.