.22LR would be the ONLY weapon I would shoot them with ... 

Hmmmm, might want to dial that up to a .25. My cheapo "throw down <img src="/forums/images/graemlins/grin.gif" alt="" />", Jennings .22 LR will go almost all the way through a Dallas phone book. That's 3 times farther than a .380 will penetrate. It's my 'dog' gun when doing trail work....never had to use it though, yet. .22's are like shooting something with an ice pick. All penetration. You make a good point though. When I'm solo and camping, cocked and locked is the readiness state, within easy grasp....if I bother at all.
paul, texas KD5IVP