Ahh, I hadn't thought of those reasons. I figured you might want to protect yourself being out there alone, so I'd take along maybe a 9mm for protection from whackos. But you made good points.
This perticular one I think I'd like.
http://www.marlinfirearms.com/firear...tion/1895M.htm
But then there is the question of would I ever use it. 18 inch barrel and 450 Marlin is a bit big for hunting, eh?
Or as another route, what about something like this in .45ACP and full auto?
http://www.hecklerkoch-usa.com/index...PartNumber=UMP
Or this little baby with three-round burst+semi auto+full auto.
http://www.hecklerkoch-usa.com/index...artNumber=MP51
Interesting defence weapons they would make.