Rule learned from Jim Scott of Leon, Iowa. Never gave Jim credit in his book.
Jim Scott is (or was, don't know how he's doing) a really good guy. I bought some M70's from him and he was always fair. In fact he was so fair he wanted to buy a couple of them back. And he never forgot what I had.
"Be sure you're right. Then go ahead." Fess Parker as Davy Crockett