Old Yuck

I'm going to complain a bunch and it's uninteresting but it's all i have in my head here at work!

A guy comes to the counter. He snaps his fingers in a wide arc over his head, all while i am talking to another customer. I say "did you snap your fingers at me?" he says "I snapped, but not at you." i say, "ok. how can i help you?" he says "I need seventy five cents for the bus."
i dig around in my change drawer that i thougtfully keep stocked with quarters for our customers that park at the meters, but it's empty. I search my pockets. I look in the gift certificate drawer. I finally come up with sixty cents and hand it to him, which he takes without saying thank you.
I do the only thing I know how to do when people don't say thanks, which is super passive aggressive and something a forty year old teacher does - I say "you're welcome!"
He walks around the lobby for about five minutes, looking at flash and pictures on the wall. When he does leave, he swings the door as wide as possible and leaves it open.
Of course I stomp outside and yell at him. Jesus.