I live in central Ca. There are a lot of Mexican nationals, and Hispanic people in the community who are VERY fond of illegal fireworks that either they or family bring up from south of the border or buy at one of the local Indian reservations. (I'm not being racist, all of the families that use these fireworks in my neighborhood are Mexican or Hispanic). I'm talking the large commercial grade fireworks you see at ball parks and city fireworks shows. The kind you have to launch out of a metal tube. I have one neighbor two houses down that has already started lighting of a few a night. I have about 4 or 5 other neighbors in the neighborhood that do the same thing. This will go on for about a week after the 4th, as it has for as long as I've had these neighbors. They also light these same type fireworks throughout the year at various holidays, birthdays, weekends.
When they go off they scare the hell out of me, at least the first few, after that I'm hyper vigilant and keep a close eye on my security camera monitor. Once I see the flash, I know the boom is coming. It doesn't always work, sometimes it still startles me.
They are very illegal, and I could call the police. I won't though. I don't want to ruin others fun because of my condition. Also I think the "Safe & Sane" fireworks laws of Ca (and most states) are too extreme. If someone wants to blow off their hands out of stupidity, I say let them, they won't do it a second time.
Of all the holidays, the 4th is my least favorite simply because of the fireworks.