As a platoon leader in Somalia, I can't count the number of times one of my troops, Rambo knife-on-hip, would come up to me and say, "Sir, can I borrow your leatherman?"
These days I'm partial to my Beretta Airlight:
I wanted an Airlite, but I didn't like the stud.
Odyssey® I-HCS - don't leave home without it.