Actually, the best thing I did with a knife, not the smartest, was to offer one. In Thailand just after a flood, by Mom-in-law decided to butcher her pig. Her ex-hubby was doing the butchering and needed a sharp knife. I had a hill tribe knife in my backpack about 10" long blade, sort of a Bowie shape. He laughed when I pulled it out, like the foreigner would know. In one quick stroke, I shaved the hair off my forearm for about 4 inches and dusted it off. A lot of people were glad to get fresh cut pork that day.