Restaurants that completely misname an item after famous food from another place.
None of the hot chicken places I've ventured to in Nashville (Prince's, Hattie B's, 400 Degrees) call it "Nashville Hot Chicken" - it's just chicken served at various degrees of heat. I get it if you're somewhere else on the planet and want to serve a copycat version and decide to call it Nashville Hot Chicken just to differentiate from all the other kinds of chicken on the menu. But if you're gonna do that, at least make it virtually identical to the real thing - fried and then slathered with spiced hot oil/lard. Not buffalo sauce. Not hot honey. Definitely not served on ciabatta. I swear at least half the places I eat have Nashville Hot Chicken listed on the menu and not a one makes it correctly. Just call it a spicy chicken sandwich.
Same thing with cheesesteaks. If you're gonna call something a "Philly" cheesesteak, then it's meat, one of three cheeses (whiz, american, or provolone), and with/without onions. Obviously, you can get additional things added on, but don't list a Philly cheesesteak on the menu and have it come with cheddar and green peppers. A place down the street from me has one that comes standard with roasted poblanos and gruyere. It might be delicious, but it's not a philly cheesesteak!!!
Words have meaning!