I have participated in one of these (usually refered to as chain cams), probably the ones mentioned early in this thread 'on that other site'. I think 1 out of 4 that have taken off have actually returned home, and the one that did make it back had it's journey truncated because it was taking so long and the 'owner' got it returned when they could... see this page for more details http://members.ozemail.com.au/~markthomasz/ My pic is #3 in the gallery