My uncle in Texas says they say "Hold my beer, watch this!"
It isn't clear what happened here. He wasn't that kind of risk-joke taker. He maybe thought the fuse was not lit, and it was.
There were better incidents. In California(?) the fireworks platform broke, tipped, and threw the rockets into the crowd. 4 serious injuries and a dozen+ minor injuries. Canada(?) a truck full of fireworks caught fire and stopped under a bridge. They ran a hose on it but basically let it burn out.
The only "explosive" at my house on the 4th was me swearing because I wanted to re-do the rocker cover on the Honda and I could not find my gasket cement. (Like a 289, you need dabs in the corners.)