I love sushi, but have always had the problem of the bites being too big. A typical piece of sushi is about 3-4 times what I would normally put in my mouth at once. I feel like I am going to gag on it. This also presents a problem when trying new sushi: if you don’t like it, you have this enormous quantity of it in your mouth–good luck. Is it rude to ask the sushi chef to slice it thinner? Take bites out of rolls? (This is what I do at home, but you don’t get all your flavors together.) Any sugestions?
You’re a femme, right?
It’s totally kosher for you to ask the chef to bisect them for you before serving. (I suppose it ought to be cool for guys, too – but for some reason, around here at least, it is generally not.)
Otherwise, the normal thing to do is eat each piece in two or three bites. Calls for a tiny bit more dexterity, but it’s not too difficult to manage gracefully.
Get a bigger mouth! 
Sushi fits just fine in mine.
I find that taking bites leads to the rest of the piece splattering all over the place. I don’t know why they make them so big either. When I make them at home the diameter is half of what you get when ordering out. Perfect bites.
I think the rice is traditionally supposed to be much less than in our pieces we have today. The higher quality places I go to tend to use less rice. The cheaper places have much more rice, and REALLY thin pieces of fish.
I’m kinda wondering who, if anyone, in this thread is talking about rolls, and who is talking about nigiri…
I find the Sushi pieces are often too small- they’re tiny, especially for what I’m being charged for it!
Why not pick the piece up at one end and bite it in half? That’s what I do.
I guess I am missing something here, but I have had both maki and nigiri sushi that ran the gamut from pieces that would not conviently fit into one’s mouth to perfectly bite-size portions.
Just depends, in my experience.
I loove sushi, and I’ve found they’re perfectly easy to make at home. They’re my favourite " impress the new guest"-dinner, as they’re easy to make beforehand.
For the price of one sushi take-out, you get all the tools and ingredients. And anyone who can roll a cigarette can make sushirolls. And slice 'm however she wants.
Most rolls I can manage, 'though with some of the larger ones, I feel like I’m being drowned in yummy rice. California rolls always seem to be huge around here - maybe 'cause they’re cheap to make.
The nigiri (slice of fish laid on top of an oval bed of rice) are always too big for me. I know you’re not “supposed to” bite it in two, but I have to. Sometimes it works well, and sometimes the fish won’t sever cleanly and I end up pulling it off the rice bed and it flops around and smacks my chin and I look like a total doofus hick who doesn’t know how to eat sushi.
So yeah, I wish they’d cut the nigiri in two.