Dont bite the hand that feeds you!
(It means not a good idea to hurt the person (or company) that pays you or takes care of you)
"Don't bite the hand that feeds you" is an idiomatic expression that means you should not harm, offend, or act ungratefully towards someone who has been kind or generous to you and upon whom you depend. It is a reminder to be appreciative and not to take someone's kindness for granted.
The origin of the expression can be traced back to the behavior of domesticated animals, such as dogs or horses, who would sometimes bite the hand of their owner while being fed. This would not only harm the owner but also lead to the animals being deprived of food and care.
In general, the expression is often used to advise people to be careful not to act in a way that may damage an important relationship or source of support.