Gotta revise the safety rules...

one of my students caught their sweatshirt on fire in lab today. They were working with candles. He leaned over it and caught the string on fire. He managed to take it off and we stomped it out...he was a good sport about it, and other than losing the string, no harm done. Guess we better add "tuck your hoodie ties in" to the list that includes pulling back long hair!