Nice eyes, Sophie
I think Transactoid has a good point. It is disturbing if you're in the middle of discussing the nature of the universe and HONK
you wake up the next day still hurting in your left ear, but other than that it's not really a problem. To be honest, I find that when I go out to eat with friends, we have a harder time not laughing in amusement about someone doing that. I don't find it disgusting, after all it's not like the stuff in your snout is particularly lethal. Little kids manage to live off of the stuff (now that's not such a pretty picture, granted) but it really doesn't kill anyone.
And the solution to Yyz's problem is simple: don't tie your shoes!