Yeah, I worked it out... sort of.
It appeared to be just a one off, I haven't seen any other lasers since then. Either its been confiscated from them or they are bored with it because I keep using mine
.
To be honest theres nothing more satisfying than showing up someone so ignorant with they lasers by firing 3 different colurs back across the sky and setting up a scanner by the window. There's so many beams they actually watch for a bit and stop using their because they cant tell which beam is which.
[highlight]Red[/highlight] + [highlight]Green[/highlight] + [highlight]Blue Ray[/highlight] + Diffraction grating + [highlight]scanner[/highlight] = shove that in your pipe and smoke it!