Did a STUPID thing. ALWAYS be careful with fire!
I put a hot coal, into the wife's crystal ashtray. I thought it was almost out, but it was still hot. The ashtray EXPLODED, sending bits of shattered glass all around. Fortunately, it was outside, and no one was hurt. I should have known better, I had some water when I was smoking, so I could have doused it.
ALWAYS be careful, and put all coals OUT!