Don't shit where you eat vulgar slang
Do not do something that causes trouble at one's home, place of business, or any location where one frequents
I told you, "Don't shit where you eat." Office romances carry many potential risks.
The origin of this phrase is not clear.
People tend to like forbidden or illegal things just because they are forbidden or illegal.
He must have believed that stolen fruit is the sweetest, and he, therefore, cheated on his partner.