They don't pick on everyone... we have yet to be picked on about not eating anything like that. All depends on how much you play into it, how much your server is getting into the game, etc. More times than not, you won't have anything said to you. I certainly wouldn't let that keep you from eating there, it's not like you're guaranteed ridicule. The portions are huge, adn none of us finished our entire meal last time, and I don't recall anything being said to us.
The only thing I've seen is someone "helping" a guy eat his veggies with the airplane method, but I think he was already eating them... and had just a few bites left, you know? I've also seen them stand people in teh corner for putting their elbows on the table.
Don't sweat it =)