أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
Bring up the issue with another coworker present and ask for a more respectful attitude. Employees may do things the wrong way or may not live up to their employer's expectations but this is never a reason to be disrespected.
analyze the reasons if valid then give them a chance if not find out another one