So, I had one of those stick em to the wall brush holders, hanging up on my bathroom wall. I knew I needed to buy some decent adhesive hanger stuff to stick it up there better, because what came with it wasn't very strong. Earlier I heard a crash, and the holder had fallen off the wall. And the boar brush went straight...in the toilet. So after initial rinsing and sterilizing with rubbing alcohol, then rinsing it all out and using dawn on it, I'll have to shampoo and condition it before touching it to my face again.
What have I learned today? Never hang your brush on the wall anywhere near the toilet.