There used to be a guy who lived in a tent among the undergrowth of a large roundabout running under the A14 in BSE. He had been there for over 5 years, kept himself to himself, did farm work during the spring and summer, which earned him some money and was usually fed and watered by the farmers. When the season came to an end, the money he had earned helped to see him through the winter. He even had mail delivered to his tent as the area has a postcode!
About 2 years ago someone did a piece on him in a local paper. A businessman in the area read it, went and had a chat with him, discovered he was an engineer by trade but had fallen on hard times after a messy divorce. He offered him a probationary job over the winter and, if he was as good as his certificates said he should be, he would keep him on. He is now team leader for a farming equipment supplier dealing with huge farming machinery throughout East Anglia.