Yes, that thought came to mind almost immediately after posting earlier, but equally the thought of chucking it also sounds like a reasonable thing to do because it’s pretty gnarly.
But…. being the way that I am I kinda tend to use certain things i.e. microfiber towels, and in this case a claybar waaay beyond their normal lifespan simply because there’s always a time and a place where they’re still useful. I actually just finished using that chunk a few minutes ago. I used it along that edge where the door meets the windows along the side of a vehicle… You know that edge that you risk turning a claybar black due to the rubber that’s always there? Perfect situation to use this little gnarly piece of clay that’s already been to hell & back. Lol.