Bob (someone I know) was at LinuxWorld a few years back. He ended up in a small group that was talking next to RMS. Bob was fascinated to see all the food trapped in RMS's beard, and wondered if it was going to fly out while RMS was talking (okay, so Bob's kind of a weird guy). That didn't happen, though.
Instead RMS reached up, plucked some food from his beard, and ate it, without pausing.