The low-budget but classic movie, A Christmas Story (1983) is famous for the line "You'll shoot your eye out!", which is said by everyone when nine year old Ralphie says wants a Red Rider® BB rifle for Christmas.
Obviously there wasn't any classic Latin word for "shoot", so there isn't any direct translation for this.
Google Translate suggests "Oculum tuum ejicies!", but not unexpectedly that isn't very good.
Is there a concise Latin expression for this that conveys the idea of inevitable but unintentional self-harm?