Marvin, for the reasons specified by Ed TInker... when on field duty, and you are sleeping, the rifle is your constant companion.... you are responsible for the security of your own weapons..
... and in a break-away sleeping bag, you should expect to come up shooting if you are attacked at night... I sure wouldn't want my rifle OUTSIDE the sleeping bag if someone were to sneak up while asleep! Besides, rifles are better than a woman in one respect... they ALWAYS do what you tell them to do.
