1. Yes
2. Yes
3.
Yes!
4. 81-100%
5. No
(fine, I got hit in the face with a moon rock while not wearing safety glasses, but doesn't anyone? In any case, it wasn't major or anything, it just stung a little bit because of some exposed plastic)
6. I always wear safety glasses while working with power tools, or if I'm around dust and chips (especially dust, see above picture). I rarely don't wear them, and if I don't, it's normally because I deem the situation safe enough to not need them (simply moving the robot, packing things, some demos).