I know a lot more old drunks than old doctors.
You can lead a horse to water, but if you can get him to roll over and float on his back, then you got something!
If you drink like a fish, don't drive: swim.
Show me a friend in need and I'll show you a pest.
Show me a man with both feet on the ground and I'll show you a man who can't get his pants on.
I distrust camels, and anyone else who can go a week without a drink.