Prospective Boss :- (on the phone) Hi I've interviewed the OP about a job he's applied for. Whats he like?
Current Boss :- Yes, the OP is a good worker, honest, gets on well with others. We'll be sad to see him leave.
Prospective Boss :- He said you were paying him £50k a year.....
Current Boss :- What?!?!?! He's only getting paid £25k a year....