Off topic a bit... but I have to chime in here: I have lived in east Detroit, San Francisco, and Oakland for a good number of years, and I am quite familiar with all types of homeless folk. About 5 years ago in the summer I was riding the Redwood Highway on a solo tour... I saw the absolute filthiest person I have evert laid eyes upon, (harmless, ,mental, and quite friendly) riding a late 1980s Rockhopper with a Pepsi can alcohol stove, a pair of sweatpants, and one dollars and fifty cents to his name, and nothing else. He was headed from Arizona to Portland, OR. He looked like a dirty unkept wild animal, and his clothing was crusted with layers and layers of sweat. I was astonished, yet I tried to help him relate to why folks didn't want to even talk to him, he had to purify water in every town because people were so negative, they wouldn't even offer him water!