The customer would have happily paid for the full job, and no one would ever have known the difference. I told him he only needed the one part and sent him off with a smaller bill than he expected. He will be back, and he will send his brother, because the honesty is the whole business, whether anyone is checking or not.
More people experience this than they realize.
You keep your diagnosis honest whether or not anyone could catch you, because trust is everything.
If this sounds familiar, the Library can help you find the bigger picture.