True story from my yute:
It was the 1950s; girl neighbor was trick-or-treating with her older brother; they were on the front porch of a house down the street, and the edge of her long, flowing costume touched the edge of a pumpkin; as you probably can imagine by now, the carved pumpkin had a candle lit in it.
Sadly, she burned to death on the porch. Traumatic event for the family and those who knew her as well. IIRC it was the first funeral I went to, as a kid. Sorry to be such a downer on such a Wonderful Day. God rest her immortal soul.
Whew....