3”-3.5” folding lock blade knife  and a match safe with compass carried away from the other iron bits.
A “survival keyring” with:
- SAK Classic knife
- fire steel
- spy capsule with tinder
- aaa led flashlight
- whistle
It’s just enough for making fire, signaling maybe improvising shelter, and navigating  I use some it regularly too.
Scenarios? Losing your pack in a stream crossing or over a cliff, a bear drags it off, or a two legged snake steals it.

