There was a tradesman, a painter called Jock, who was very interested in
making a penny where he could, so he often would thin down paint to make
it go a wee bit further.

As it happened, he got away with this for some time, but eventually the
Baptist Church decided to do a big restoration job on the painting of
one of their biggest buildings. Jock put in a bid, and because his price
was so low, he got the job.

And so he set to erecting the trestles and setting up the planks, and
buying the paint and, yes, I am sorry to say, thinning it down with
turpentine.

Well, Jock was up on the scaffolding, painting away, the job nearly
completed when suddenly there was a horrendous clap of thunder, and thel
sky opened, the rain poured down,washing the thinned paint from all
over the church and knocking Jock clear off the scaffold to land on the
lawn among the gravestones, surrounded by telltale puddles of the
thinned and useless paint.

Jock was no fool. He knew this was a judgment from the Almighty, so he
got on his knees and cried: "Oh, God! Forgive me! What should I do?"
And from the thunder, a mighty voice spoke...

(you're going to love this)

"Repaint! Repaint! and thin no more!l