How many lightbulbs does it take to change a man?

A: Knock Knock

B: Who’s there?

A: An Englishman, and Irishman, and a Scotsman

B: An Englishman, and Irishman and a Scotsman who?

A: An Englishman, an Irishman, and a Scotsman who walk into a bar

B: What did they call the man with the spade on his head?

A: To get to the other side.

B: Well, pull yourself together, then