Laser Hallway/Headscratchers


 * Why hasn't anyone ever thought to just use an entirely solid plane so that it's impossible to evade the little beams? One could still shut the system down completely, of course, but that would be the only option instead of somehow dodging, reflecting, etc.
 * Aside from the Rule of Cool the a laser latticework presents, there's also the question of power consumption - can anybody enough power into a system to create a laser plane without generating so much waste heat that the hallway cooks anybody near it?