A man goes to get his salary cheque and when he opens it he discovers that his employer has overpaid him by £2000.
He decides not to tell anybody and keeps quiet.
At the end of the following month when he opens the cheque, he sees that he’s been underpaid by £2000.
Fuming, he goes to have it out with his employer.
“Sir, I think you’ve made a mistake on my cheque.”
“And how do you figure that?” his employer asks.