How do you shave without a mirror?  And if you can show me you can pluck anything with a pair of clamshells, I'd be impressed.
I can just see Joe Caveman leaning over a calm puddle of water (looking at his reflection) trying to pluck out whiskers with a clamshell....and then along comes Mega Caveman Terminator, stomps the puddle all over Joe, and says, "Girly Man!"
Seriously, I think shaving was all about the women.  If you were married, you shaved.  Or is it, if you shaved, you had a better chance of getting married?