You get ANY older persons together. and within 10 minutes they (read as we) are showing off scars and passing around "my surgery was worse than your surgery" stories. Sorry you had to get that little taste of what you would be like when you get quite a bit older. No, not sorry, it's kinda fun.
A friend of mine said the same thing about old people showing off scars! (In my grandma's case her nipples, HAHA...I drew a comic about this a few years ago..)