Light (monster class)
All lights will explode in your direction if you are adjacent, permanently destroying the light; this causes a status afflication, but does no other damage. As lights cannot see invisible, if you are invisible or displaced, they may explode at an empty square with no effect on you.
The explosion of a light will wake nearby sleeping monsters.
Lights have a special hard-coded set of body parts, with "hand" replaced with "ray", "handed" replaced with "rayed", and all other body parts replaced with "beam".