Did someone say hobo?

According to Answers.com...

Hobos generally apply the term hobo only to itinerant people who work.

In contrast, they define a tramp as a itinerant person who does not work, and supports himself by other means e.g. begging or scavenging.

A bum is a homeless person who neither travels nor works. Both are terms of derision within the hobo community.

No idea what the devil relevance this has, though.