Tragic accidents happen.

“A multimillion-dollar lawsuit has been launched by the parents of a student who almost died after being strangled by a lanyard at his school in Bearspaw just west of Calgary.”

You don’t sue people for not thinking of every possibility that might happen.  If this isn’t the case , I look forward to our children being encased in foam for their protection and certainly not using potential hazardous materials such as pencils or pens.