Depending on the class it's not annoyance but endangers your eyesight. If used (in)appropriately it can definitely be classified as a weapon. A number of people

Depending on the class it's not annoyance but endangers your eyesight. If used (in)appropriately it can definitely be classified as a weapon. A number of people have lost their eye to these things in the past (class 2+) - read on why its forbidden at burning man: https://burningman.org/event/black-rock-city-guide/lasers/ https://burningman.org/event/black-rock-city-guide/lasers/