Give a man a fish and you feed him for a day. Teach a man to fish and it won't be a month until he's banging on your door every single day, trying to trade his fish first for your wife, then for your mother, then for a bigger fish.
"Sick to death of fish, fish, fish!"
"Go to different water hole. Maybe different fish."
I am not going to teach him how to hunt!
Moral: If he too stupid to fish, he's too stupid to live!