(We sell, among other things, cards for a popular trading card game. A customer walks in, walks directly to the counter, and pulls a few cards out of his pocket.)

Customer: “I’d like to purchase these, please.”

Me: “I’m sorry, purchase? Don’t you mean sell?”

Customer: “Yeah, I didn’t have the money at the time. However, I didn’t want anybody else to get them, so I just left with them. I’d like to pay for them now, thanks.”