These are groansome but I just had to post them.
Sir Alan Sugar is in a workshop and goes over to a pottery kiln. He opens the door and points at a pot and says: "You're fired!"
---------
Sir Alan Sugar raises the Union Jack up a flag pole and says: "You're highered!"
---------
Sir Alan Sugar puts a silver foil blanket around the shoulders of a marathon runner, prods him the chest and says: "You're tired!"
---------
Sir Alan Sugar is fiddling with cables around the back of his TV set. He gets up and points the remote control at it and says: "You're wired!"
Sir Alan Sugar is in a lingerie shop and goes into a changing room where a woman is trying on a bra. He twangs the strap and says: "You're wired!"