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 and hangs upside down and shouts "I'm a lightbulb! I'm a lightbulb!"
The foreman shouts "You're fucking mad, go home!" So Paddy leaves the site.
Murphy packs up to leave as well, the forman says "where the fuck you going?"
Murphy says "I can't work in the fucking dark now, can I?"
