Are you a very bad customer?

The last fifteen seconds made me laugh. The contrast between his calm demeanor and the f-bombs was too much.

I went to a new burger place in my area last year and placed an order at the cash register where the machine asked for a tip which I paid. I thought that the cashier would bring my order to the table. I was wrong. She called out my number and I had to get my tray. Felt like a sucker.