A boy scout was out doing his bob-a-job stint one Saturday in Farmborough.

A boy scout was out doing his bob-a-job stint one Saturday in
Farmborough. He walked up to the front door of one house
and rang the doorbell. The owner appeared. "Yes ?"
"Bob a job week, sir !"
At first the man didn't want anything to do with the kid, but eventually
he agreed to give him a job. "You can paint my porch for me", he said.
"The paint and brushes are in the garage - here's the key."
The boy scout toddled off to do the job. Two hours later, he rang the
doorbell. "Job's done", he said, his palm outstretched.
"Harumph. Took your time, didn't you ? Well, okay, here's your FIVE PENCE !"
The boy took the money and started to walk away, but after a few paces he
turned around and said, "Oh, thanks for the donation, but by the way, it
wasn't a porch, it was a Ferrari !"