Paddy  and Murphy are working on a building site. 

Paddy says to Murphy "I'm gonna have the day  off.

I'm gonna pretend I'm mad!"

He  climbs up the rafters, hangs upside down and  shouts

"I'M A LIGHT BULB! I'M A LIGHT  BULB!"

Murphy watches in amazement! 

The Foreman shouts "Paddy you're mad, go  home"

So he leaves the site. 

Murphy starts packing his kit up to  leave as well.

"Where the hell are you  going?" asks the Foreman.

"I can't work  in the bloody' dark!" says Murphy.