A young office clerk skived out of work to go and get his haircut. The barber was half way through cutting his hair when, who should walk in but his boss.
Boss: "What the hell do you think you're doing?
Young Clerk: "Getting my haircut."
Boss: "Not in my time you don't."
Young Clerk: "Why not? It grows in your time."
Boss: "Not all of it doesn't"
Young Clerk: "Well I'm not having it all off."