Quote of the moment:
Rubik, the guy with the eponymous cube, is still alive. With your help, though...
Home is where the heart is, perhaps, but home is definitely where you'd probably rather use the john.
Here's a list of the relative comfort factors of various places to take a dump "in the wild." I'm sure I missed some particularly gruesome ones, but I think it's a well-rounded list, all the same.