Having a great time at the annual Grunge Guys Gathering. The first one I've ever attended, though I've followed their webpages for over 10 years. Now that I'm single, I was able to go for the first time.
Basically, it involves getting dirty for a whole weekend. Nice guys behaving like pigs. There's a mud pit, a ditch with running water, a horse trough, a grease/oil shed, and lots of other places to play. I've done things this weekend that I've fantasized about all my life. I think the most surprising part for me was to discover how natural this all feels. The guys are all friendly, and I made quite a few new contacts I'll look up again.
Certainly not a kind of play for everyone. I really need a long hot shower!