My first thought was school/caffeteria food!
I've ate shark before...don't like it but then again, I'm a pretty picky eater.

My number one 'food' pet-peeve is letting your fork/spoon/knife touch the table (at restuarants, etc). That is just soooo grossssss to me! They don't do anything but SWIPE the table with a cloth... now how many germs have you just exposed that fork too? *shudders* (can we say obsessive/compulsive? or maybe that just anal retentative! lol)