It's an old joke...
A painter gets a contract to paint a church. He's having a rough time of things, though, and to try to maximize his profits, he cuts the paint with paint thinner so that it lasts longer. Unfortunately, it also covers poorly, and the church pastor calls him on the poor job he's done.
Ashamed, the man explains what happened.
To which the pastor replies, "Repaint! And thin no more!"
I didn't start it...
