I don't know what kind of car it is.
All cars have a problem with the nut that holds the wheel.
Don't give that nut any money for gas until he smartens up.
Apply a little alcohol and see what happens.
Change drivers. :-)
Don't let him drive.
Free bus pass.
It's like a fine wine or cheese. Only aging has a chance of "repairing" that problem.
Take his license away. Obviously
Take the keys.
Use a wrench?
There's a nut behind the wheel?
Maybe he is the loose nut behind the wheel. Lol:)