“I’m gonna get the day off, I’ll pretend I’m mad!” Climbing up onto the rafters Paddy hung upside down shouting, “I’m a lightbulb, I’m a lightbulb.”

Murphy was amazed when the foreman shouted: “Paddy, go home. You’re mad.” Paddy promptly left the site and Murphy packed up as well.

“Where do you think you’re going?”

“I can’t work in the dark!”