Is it ethical..?

Its good to know that people feel that its up to them to decide who really needs money and who has enough. I'm glad I don't have that responsiblility.

I don't have that responsibility either. I'm not setting myself up as arbiter of who's deserving or not, I'm just saying what motivates me to 'fess up and hand back the goods. I'm no saint.

@Charlotte re the Tesco change. What if Tesco deducted the mistake from the person's salary? Or accuse them of stealing the money etc...

Actually, I don't have a problem with that. Mainly 'cos unless I have the raving munchies in the middle of the night and nobody else is open, I'll shop somewhere else. Tesco are a big, bad bunch of evil corporate motherfuckers and I avoid buying stuff from them as much as I can because I'd like to see them wither and die.

If they want to screw their staff over for an honest mistake (not that I'd imagine this is legal) then it's their bad karma, man...