I will bitch about retail, but from the customer side, dammit!

Just today, this happened to me: I can't STAND it when I give the money to the cashier by putting it in her hand, then when she gives me change back, she puts it on the ledge/table, despite my having my hand out right in front of her.

I just find that SO freaking rude. If I can give you the courtesy of putting the money in your hand, you can do the same to me.