The only thing I really can't deal with is a middle seat surrounded by FAT people. Not only didn't I get any armrest, but I had to sit with my arms squinched into my sides to avoid coming into contact with both passengers' overabundant adipose tissue.

Luckily, I accidentally spilled my soda on one of them halfway through the flight. It didn't get me wet at all, but totally soaked one of my rowmates.