There was a "Chicago-style" bbq place in San Antonio. It was called Old Smokehouse on Fredericksburg road. Used to go there quite a bit since it was right next to my work and it was quick. Food wasn't bad. Would fill a need whenever I craved BBQ. Food was served cafeteria style.
Anyway one time I went there and the person in front of me was a dude in a A&M hat. When he got to the front he ordered his food then asked the meat cutter where the owner was from. The meat cutter replied "Chicago." Aggie dude blew a gasket. "WHAT?!!! YANKEE BBQ?!! HOW DO THEY KNOW ABOUT BBQ?!!!". He then slammed his food on his tray and walked to the center of the dining room area where he started yelling and ranting about Chicago BBQ as if everyone was getting poisoned since they weren't eating Texas BBQ. It was a pretty full restaurant and everyone just silently stared at him till he lost steam and left. Probably the weirdest lunch I've ever had.