Youngstercide
noun. - The killing of poor, innocent youngsters.
Billy! Stop jumping on the trampoline with them scissors! You might stab your sister on accident, and we don't want another messy youngstercide on our hands.' or, 'Be careful with that poison around the halloween candy, you might inadvertently commit youngstercide without even getting to lay your evil gaze over the poor kid's eyes while he realizes what a terrible person you are!