Yeah, this doesn't really scale. For safety, I think using multiple coordinated laser sources would be better (making them all converge at a single point). Tha

Yeah, this doesn't really scale. For safety, I think using multiple coordinated laser sources would be better (making them all converge at a single point). That, plus obviously a wavelength not dangerous for our eyesight. Angular precision is an issue, but one could probably go around it by using a closed-loop control system that targets before increasing the power. Targeting is hard as well, if you want a reliable system, there's probably no alternative to sensor fusion (sound, active infrared range-meter, maybe radar & ultrasound). In the end, it's probably overkill compared to a trap, but the challenges are interesting.