I was watching a firework display with wife and two-year-old daughter (I held latter in my arms for view) at a fireworks party run by a friend, some years ago. The rockets were carefully placed, ready to go up, lit - then fell over and came straight for us. We ducked, dived, covered the youngster - I got some bruises, wife got a burnt pair of pants and daughter (and us) all got a helluva scare.
I've seen professional show since, no more amateur ones. Booze and fireworks, and the casual attitude don't mix.
As for July 4 - hope it all went well for the USAns amongst us. Go 'Murica! Hope y'all had a great night, illuminating, watching or just chilling.