It's July 4, and blowing stuff up is acceptable. Nay, it's encouraged. Just as long as you're not doing what the idiots in the above clip are doing.
Setting off fireworks under someone's chair, pointing them at your friend's face, igniting explosives near your crotch, and making a big boom indoors? These are all examples of what not to do. You could lose an important extremity, like a finger or something worse. So please, celebrate America's birthday, but do so responsibly, unlike these dummies. [The Awesomer]