Paddy and Murphy on a building site ,
Paddy says " I want a day off on the sick , I'm going to pretend I'm mad"
So he climbs up to the rafters and hangs upside down and shouts "
I'm a lightbulb ! I'm a lightbulb !"
The foreman shouts " Paddy your fucking mad go home"
So he leaves the site and goes home for the day.
So Murphy packs away his tools to leave as well.
The foreman says " where do you think you are going ? "
Murphy says " Well I cant work in the fucking dark can I ? "