I saw the escalator working once. By the time we got out of Soarin' it was broke again. I had to use the elevator last time and a woman broke my big toe by stepping on it with the heel of her foot. UGH!
That drives me nuts. I just want to jump out of my vehicle and confiscate their camera.
My biggest pet peeve is people touching me while in lines. I know it's a tight space, but I have never rubbed against, repeatedly bumped into, kicked, slammed my bag into, let my kids climb all over, or leaned on the people in front of me.
Yes, I actually had a woman leaning on me, even though there was a wall right next to her. I told my husband that we needed to change places before I got into a fight. She proceeded to lean on my DH for the rest of the wait.

He has much more tolerance and patience than I do.
Another form of bad queue behavior is talking about inappropriate things loudly while in line. I have recently heard graphic childbirth descriptions and sexual discussions as well as foul language.