Whenever you go through the drive-thru and they put the fries in the bag top down so they spill out everwhere.
If you have a medium size dog and they decide to jump into your lap, when they accidently smash your nuts.
And I agree whole-heartedly with the tea comment. You make a huge sandwich, you pour a drink, and then you forget the damn drink and you realize it just as you get comfortable.
