Quote:Critters chewing their leg off is a myth. When the blood flow to the extremity stops, the limb becomes completely numb and in the process of biting the trap the toes are sometimes bitten off.
I mentioned the neck type snare as alternative to leg snare IF you were going to use a fishing line/ cord instead of a wire snare.
Q critter could chew thru a para-cord/fish line, if it could reach it.
I like the anise oil idea, combined with a neck snare. You could use a heavy dead branch rigged with a " trigger" stick, dead-fall style instead of a springy branch if that wasn't available.
I agree with Mad Mat, you can go along time without food. If you can stay warm and hydrated, that will keep you alive for a long time, especially if your staying in one spot. Having a 24/7 fire and some green boughs for signal smoke will help as well.
The majority of the world gets it's protein from insects. Kick over any rock/log and you'll find something to eat. Just hold your nose and swallow whole without chewing

Lack of protein will make you mentally disoriented, more than lack of carbs.
If nothing else, rigging snares/keeping the fire going, will keep your mind from wandering into the " negative" zone. Once you lose hope, your a goner