Paddy and Murphy are on a building site. Paddy says "I want a day off sick. "I'm gonna pretend I'm mad". He climbs up to the rafters & hangs upside down and shouts "I'm a lightbulb! I'm a lightbulb!" The foreman shouts "You're fcuking mad, go home!" So he leaves the site. Murphy packs up to leave as well. The foreman says "Where the fcuk are you going?" Murphy says "I can't work in the fcukin dark can I ?".