Give him a foot and he’ll take four.
More French Proverbs:
He goes safely who has nothing.French
What the gauntlet wins the gorget consumes.
French
According to the arm be the bleeding.
French
To heaven for the music but to hell for a good conversation.
French
Handsomely asked, handsomely refused.
French
He is like a singed cat, better than he looks.
French