There was an employee picking up the dishes from the dirty dish bin next to the trash when I got there, so I set down my cup on the edge of the trashcan and turned to put my dishes on the cart on which the employee was stacking the dirty dishes. I stacked them with others of their kind neatly, added my silverware to the silverware pile...and turned back around just in time to see the employee casually reach out and slap my cup into the trashcan. It wasn't even within easy reach - she had to move to do it.
Me: "...I was still going to use that for a refill."
Employee: "Whatever, I'm busy, I don't have time for this." All the while she scowled at me and shook her head, not even looking up.
Well, well, next time I'll just drop my dishes on top of your hands then. :|