One of man's most wretched creations gets its karmic comeuppance. Using a port-a-potty is about as enjoyable as brushing your teeth with gravel. Half outhouse, half torture chamber, the rudimentary bathroom option is usually weirdly hot, emits a revolting smell, and induces claustrophobia. Port-a-potties have also provided the setting for one too many horror stories. We all know this, and yet we're still forcing human beings to use the plastic poop prisons in various public places. They are, if nothing else, unnecessarily vile creations, which is why watching some get swept away in a wind storm is both terrifying and...