The place where I teach meditation has a fantastic caretaker - he's a spritely gentleman in his 80s and he comes in to lock up every week while I'm packing up and we always have a little chat. I see him once a week, which is probably more than I see some of my friends, to be honest!
Yesterday, I asked him what he was up to and he replied 'About 5'11 by now'. It cracked me right up. Hooray for Tommy Cooper style humour, you don't get much of it about these days.