Geoff,

Your examples of self rewarding behaviour, I think, areally more superstious behaviour. A behaviour occurs, an event happens, unrelated to the behaviour and a superstious connection is made. I think a better example would be a bored dog paceing in a run. The pacing burns off restless energy and is thus rewarded. Running, for people who get a runners high, is a self reenforceing behaivour. Eating. Things like that