I just came back from Disney World. One night we had dinner at Cinderella's Castle. One of the waiters had an uncanny resemblance to UT. He was 6'8" (our waiter mentioned), pretty big upper body though not as thick as UT, and a very similar face except he had a big handlebar mustache. I just couldn't believe how much he looked like him. All he needed was the tats and stuff. I just thought it was kinda' neat.
I don't think Undertaker is over 50. Otherwise, I agree, some of those guys need to retire. I don't think HBK really needs to. He's been showing that he can still hang with the guys and even carry some of the lesser guys to decent matches.