Nobody's perfect, but the first best advice I can offer is spell check.
You could very well be in trouble when you make bets with people you don't know and don't know how well they shoot.
I hunted a property in MO for years. The guy that owned it uses a 30.06 and factory 125 grain bullets. One year they showed me a ridge where he killed a buck, and where he was parked in his truck from where he shot it. I said NO WAY. I took out my range finder and it was 800 yards on the nose.
I "bet" him a case of beer he couldn't repeat that shot on paper. By golly he did. He just knows how to hold over. Had I bet him a dollar per yard, I would have had to pay up.