I didn't actually see the event. Another TA was assisting with that lab in an adjacent room. I was busy instructing half of the students how to calibrate their ocular micrometers. We had to double up on each other's lab for safety reasons, becuase we were required to teach two labs. The student picked up the handle, but I think she stuck the loop too far into the incinerator for too long. At the beginning of class, I gave a safety briefing. The incinerators are actually safer than a bunson burner however.