[NSFW] What was the weirdest place and the most risky you ever had sex?

[NSFW] What is the strangest place you have gotten sex, and what was the most risky? This would include oral sex or other sex apart from intercourse.

I ran into a book from my late housemate while searching his stuff to see what might go to family if I found any and which will get tossed. The book had stories of men recanting the wild sexcapades they have had. I got to thinking way back when the stories I read in Penthouse. I figured it had to be made up, the women and the locations was too far fetched for people to have sex in. Then it happened to me and I seen then sometimes sex find you in the weirdest of places.

The most daring place I ever had sex was getting a blow job in a near deserted theater, but there were people sitting in the row before but several seats off to the side.

The strangest place I had sex was this natural hole in the ground that looked to be made by the root ball of a dead and fallen tree while out hiking.

Top that? I am throwing down the gauntlet, I dare you. ;-)