свои собаки грызутся, чужая не приставай

• СВОЙ СОБАКИ ГРЫЗУТСЯ <ДЕРУТСЯ>, ЧУЖАЯ НЕ ПРИСТАВАЙ <НЕ ПОДХОДИ>

[saying]

=====

⇒ do not get involved in sth. that is not your affair (said when an outsider gets involved in a quarrel between close friends, spouses, relatives etc, thus putting himself in an awkward situation):

- ≈ mind your own business;

- keep your nose out of it;

- don't poke your nose where it doesn't belong;

- this is our (their) fight, keep out of it;

- it's <this is> none of your business.

     ♦ "За что ты мальчика тиранишь?" - спросил Тиверзин, протискавшись сквозь толпу. "Свои собаки грызутся, чужая не подходи", - отрезал Худолеев (Пастернак 1). "Why do you tyrannize the boy?" asked Tiverzin, elbowing his way through the crowd. "It's none of your business," Khudoleiev snapped (1a).