Do you ask your waitperson if the dish you're thinking of ordering is good?
I have friends who ask this constantly. I would say that once a year or less we get someone who actually lowers their voice and steers them away from something, but for the most part they get the usual "everything's good" type response. I think it's a stupid question.
They're also fond of "what do you recommend?"
Personally I don't ask any questions, but I can see maybe asking this at someplace like Forequarter that experiments and may have a unique special. More often than not we're at someplace more akin to Ha Long Bay and my friends usually get a list of what gets ordered the most by middle-aged white guys. Why bother?
Other common inquiries from our group:
Is the soup made here or from a can?
Is the soup hot?
Do you make your own corned beef?
Do you make the ____ here or is it from Sysco?
Do you make the desserts?
And my favorite, "can the cook make a cheeseburger medium-rare?" This particular friend has sent back more burgers than he has eaten because "nobody in this city can cook a burger to medium-rare!"
It's a fucking hamburger, just shut up and eat it.
I love my friends but I'd pull my hair out.... if I was the kind of person who pulled out perfectly good hair.