coondoggie writes: "Commercial grade green and red laser pointers emit energy far beyond what is safe, posing skin, eye and fire hazards. That was the conclusion of a National Institute of Standards and Technology (NIST) study on the properties of handheld laser devices that tested 122 of the devices and found that nearly 90% of green pointers and about 44% of red pointers tested were out of federal safety regulation compliance." Link to Original Source
I've never been canoeing before, but I imagine there must be just a few
simple heuristics you have to remember...
Yes, don't fall out, and don't hit rocks.