What at first seems to be a stupid question turns out after prolonged contemplation...to be a stupid question.
Even the so-called "dumb animals" (apes, monkeys, racoons use tooth picks when something is lodged painfully between their teeth. Alleviating such irritation is virtually reflexive and for tool users calls for a toothpick fashioned out of whatever's handy: one's own claw (the favorite of dogs and cats), a twig (primates) fashioned and scented (Homo sapiens) or a whole foot (hens).