The guys loitering on the street had been trolling this kid for a couple of years.

They'd hold out a nickle in one hand and a dime in the other and ask "Which one do you want? The nickle is bigger!" and the kid would always take the nickle.

One day I took the kid aside and asked him "Don't you know the dime is worth twice as much?"

He said "Yeah, but if I take the dime they won't ever do it again!"