Monty Python. The Travel Agent Sketch.

Tourist: Yes. I saw your advert in the bolour supplement.

Bounder: The what?

Tourist: The bolour supplement.

Bounder: The colour supplement?

Tourist: Yes. I'm sorry. I can't say the letter 'B'.

Bounder: 'C'?

Tourist: Yes, that's right. It's all due to a trauma I suffered when I was a sboolboy. I was attacked by a bat.

Bounder: A cat?

Tourist: No, a bat.

Bounder: Can you say the letter 'K'?

Tourist: Oh yes. Khaki, king, kettle, Kuwait, Keeble Bollege Oxford.

Bounder: Why don't you use the letter 'K' instead of the letter 'C'?

Tourist: What ... spell bolour with a 'K'?

Bounder: Yes.

Tourist: Kolour. Oh, I never thought of that. What a silly bunt!