After years of agonising hard work stuck behind a desk, an Assembly press officer decides - finally - to give it all up and have one go at a long-held dream. To become an acrobat at the circus.
Approaching Billy Smart, the Assembly press officer makes the pitch. "I want to be an acrobat. It's all I've ever wanted to do. I'm fed up with my current job. Can I come and be an acrobat in your circus?".
Mr Smart eyes the press officer up and down. "An acrobat, you say?", he enquires. "It's a difficult job, you know. Not just anybody can do it. How flexible are you?".
"Flexible?", replies the Assembly press officer. "Well, I can't do anything after five".