A simple and inexpensive solution to an admittedly design flaw. I later realized I could just swap out a brush for a cheaper one, but that was literally a 10 second fix. I'll probably finish the broken one, replace the broken plastic shaft with a metal insert. You can break it there too. While I now know it only pops out to clean, I'm not going to let it get so clogged with dog hair that probably caused the problem in the first place.