Quote of the moment:
As Aristotle said, "hearing out a poor argument is worse than a kick in the penis," but he wore Greek penis armor at all times, so...
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.