The woods have called before but I always am prepared. I keep TP in my car, I keep it with me on the road too since you never know when you need it.
on my bike trip, we were biking and all of sudden i had to go. stopped and i ran up the hill, trying to hold it in. found a nice tree and pulled my shorts off. squatted down with my back against the tree, and let it come out. found some big leaves to wipe with. and off i went back down the hill after pulling my shorts back up. told the group i had to really take a piss
The second time around there was nothing to wipe with, so i used a stick. The roughness grating over my bung hole... mmmmmm. I blew my wad all over the hike leader's sleeping bag.
I made a thread about this in the confessions forum. Sometimes when I am really trashed I decide to walk home but forget to poop first. It's a mile walk home from the bar and soome times I have to poop on the way. I've pooped in some random yard, I've pooped behind the parking garage and I've pooped down by the bridge over the river all while amazingly drunk.