Fireworks vs. Fireflies

Me: Did you have a great time in Indiana, Milo? Did you see lots of fireflies?

Milo: Fireflies! Boom!

Me: Not the fireworks, the fireflies. They glowed in the dark.

Milo: Fireflies! BIG Boom!

Actually, exploding fireflies would be pretty cool... loud noise and phosphorescent green goo flying everywhere...