Are you crazy? They'll poke their eye out!
(kidding)
btw, wanna buy a Post Versatrig?
Black case with belt loop included :-)
And in much better shape that the one in the pic.
btw2 - someone's going to ask, "What's a slide rule".
I'm waiting for that question on this thread as well :-P
I still remember the groundschool class on the flight computer. There were only two of us over 35 and we both understood exactly how it worked (the other old-timer was an engineer preparing for retirement) but them thar whippersnappers were totally bewildered over the notion that a device that doesn't use electricity could calculate wind drift, fuel load and ETA. I made the mistake of telling them that it was just a slide rule with a circular design and "What's a slide rule" was their response, using those exact words.