It's not about how much cash there is in your pocket but how you sleep at night.

Today I went to the usual place for my lunch: the little old dear behind the counter had two attempts with the calculator.... "£2.50, please". I shook my head. "£2.65," still no, eventually out came the correct figure of £2.85. The amount I'd already worked out for myself, and had in my hand. The woman's appreciation was worth more than the 35p I could have "made" on the deal. And guess what? Tomorrow I can look them in the eye.

Your £8.75 wouldn't have seemed so sweet when the pub (I guess it was that sort of drink?) went bust, would it? Still, the kid's obviously a dork.... £8.75??? Where'd he get THAT from?