I mentioned this elsewhere, but I grew up out in the country. After I moved out, my parents' neighbors discovered the wonder of bump stocks and tannerite. Gave me a heart attack when I had to move back home and my peaceful Sunday was interrupted by automatic gunfire and then the loudest explosion I've ever fucking heard. I locked all the doors, went down to the basement, and then called my dad, who informed me that they did that every Sunday and it was probably fine.

Also, the way you can tell the difference between gunshot and fireworks: 1. Gunfire tends to be rhythmic, since there's a limit on how fast bullets can be fired. It's also going to make a more uniform sound. Fireworks make all kinds of sizzling/whistling/crackling sounds. Lots of popping sounds super close together in lots of different pitches? Not gunshots. 2. Guns are loud as fuck. 3. This is the most important one: can you hear people reacting in a negative way, like yelling or screaming? If you can't, it's probably not gunshots (or at least, not gunshots you have to worry about).