Terms for subject General containing is not to be trifled with

English	Russian
he is not a man to be trifled with	с ним шутки плохи
he is not one to be trifled with	с ним шутки плохи
she is not to be trifled with	ей пальца в рот не клади
she is not to be trifled with	ей палец в рот не клади
this is not to be trifled with	это не игрушки (переносн. mariakn)