I did too, once, lol. Luckily, I was putting the very last bit into the block, and it hardened in the funnel, I was like, "Whats going on here"? I lucked out. But learned something. I experimented with some once too, mixed a small amount up in a solo plastic cup, let it harden. Mixed up a little more, poured it over the already set stuff, it bonded like it was one. I like the stuff
frank