What would you do if?

This is what i would do if:

If my friend asked me to add a few extra hours for his work time sheet and i knew he didn't do the time then i would not be giving him the hours that he asked for. 

If a salesperson offered to sell me an ipod after hours for a discounted price i would probably do it but get a receipt and then show the store what this salesperson did and hopefully they would be fired.

If the teller gave me back too much money when completing a banking transaction i'd probably keep it(who wouldn't?)