I'm on a Bus

A guy in NYC scammed me out of five dollars. He asked me where I was going and I said Philadelphia, which was the next stop. He then offers to take my big bag. As we're going down the escalator he says "Usually people tip me for this." We put my bags at the gate for Philadelphia and he reiterates that usually people tip him ten dollars or so. Which is ridiculous because it took about two minutes to get to the gate. I tell him no I'm not giving him ten dollars and he says "Well, at least seven." As justification for this he states that the breakfast around here is expensive. I ended up giving him five.