I don't know what wavelength the used laser-light has, but assuming that it is below ~125nm, It is not ionizing and therefore not causing cancer. What he does is simply burning his skin. Remember when you were a child and burnt your hand using a magnifying glass and sunlight? that was more dangerous. Of course, what he does is grossly negligent and I wouldn't mind if there would be an accident and it would burn a bigger hole in his hand. But by paying this idiot so much attention, some poeple could have the desire to become as "famous" as he is now and imitate it. It's the same with clothing. One wants to be a bit individualistic, he gets attention, the other copy it... [rolleyes-smiley!]