He who lies down with dogs will rise with fleas

Similar English and Irish sayings:

He that lies down with dogs must rise up with fleas He that lies down with dogs must rise up with fleas
Dog that is idle barks at his fleas, but he that is hunting feels them not Dog that is idle barks at his fleas, but he that is hunting feels them not
A lean dog gets nothing but fleas A lean dog gets nothing but fleas

Proverbs and English sayings