Exploding glass

This reminds me of another incident that happened the other night. I like to burn candles while we sleep so it won't be too dark. We had these nice glass candle holders... they were thick and small, they had nice colors. But one night while we were asleep the candle holder got so hot that it exploded. There were colorful shards of glass everywhere. I heard it explode too---it woke me up. The end