Y'all ever get a bump on some random part of your body, and you think "that's odd. I should keep an eye on that".
So you kinda go on about your bizness, maybe touching it once in awhile, but it seems pretty insignificant.
Then one day, you just kinda run your finger over it, and you get the whim-whams and you're all like, wtf is that? So you rig up this big mirror array so you can get a better look. And there's a big thick rope of a black hair and a perfect little fingernail growing from it and what may or may not be am incisor forming I'm there.