I have been researching some of the dangers of blue light/lasers. Before I began researching this, I would often put my hand into the beam of the laser for brief moments until I felt a heating sensation/pinch (I would allow my hand to be in the beam for a maximum of 2 or 3 seconds, being very careful not to actually burn myself). I was curious and unaware of the dangers then. I'm sure other members have done this before also. Should I have reason to be concerned?