Sigh. This reminds me of an ex-roommate.

So I worked at a factory and he was a notary or some such function connected with real estate, working from home. One day I was running late for work, which was maybe fifteen minutes away by bicycle, and asked if he didn't mind giving me a lift. About halfway there he mentioned casually, "Oh, just so you know, I'll be billing you at my normal rate ($60/hr) for this ride." Thanks for the trouble, just pull over and I'll walk, buddy.

People may or may not have sane ideas about friendship and money.