When you're at a movie, and you have to pee, but the film you're watching has a tacked-on, lengthy epilogue. So, you have to pee badly, you know there's at least a 75% chance the post-climactic scene(s) will contain nothing memorable, but for some reason, you're rooted to your seat until the credits start rolling.
In addition - Jobs That Should Be Banned: Bathroom Attendant at upscale restaurants. I'm sorry, sir, but absolutely no one requires your presence by the sink while we make use of the facilities. I've long since mastered the fine art of washing and drying my own hands. And I don't need anyone to hand me a breath mint - if you leave them in a glass bowl with a spoon on the counter, I can figure it out from there. At this point, employing a Bathroom Attendant is like hiring an Elevator Operator - it's more of a curiosity and an ironic gesture than anything else.