documenting the many uses for the common pocket knife
I can’t condone using a pocket knife blade to pick your teeth (ouch!) or massage your gums (double ouch!), but if you have a swiss army style knife with a toothpick tool than you’ll never be without a good post meal gum stimulator.
I happen to have one of these style of pocket knives, and while I can’t say I pick my teeth daily, it’s a nice feature to have, and I can see the small plastic tool coming in handy for other uses. The tooth pick slides into one end of the knife, and on the other side is a similar tool compartment that houses tweezers.