i got 2 actualy
1. People who feel the need to be loud and annoying in line and find it hilarious to do things to annoy everybody for the next 15 wait
and 2
just the plain rudeness people give to other guest, for example last year in hollywood we were in line for the halloween amze and they put Girls with snack stands so my brother and friend went to buy some soda so the rest of us let this group of girls go in front of us to wait for our friends and when they came this girl and her jersey shore looking boyfriend was yelling at my friend when he got back in line because we let the girls go ahead until her boyfriend shut her up after security walked by.