Smokers - I'm an ex smoker, so I'm probably worse than anyone! I hate the smell, can't stand walking "the gauntlet" of smokers outside when I'm going to work.

Eating - OMG. I have a very dear friend, love her madly. BUT. She eats like a barbarian. Fork in a fist, eats with her fingers (non finger food), shoves huge amounts of food in her mouth at a time, then talks with her mouth full. I try not to sit across from her when we eat.....