To prevent injuries, never throw fireworks and never hold them in your hand. Leave the area in better condition then when you found it. Duds can be dangerous. Place them in a bucket of water to soak. If a device does not ignite, leave it alone for at least five minutes and approach it carefully.
Fireworks can be very hot after they burn.
Let them cool down before handling them. Place all fireworks in a bucket of water to soak. When handling a firework that hs recently burned, grab it from the base when placing it in water. They go by a variety of names. They all have one thing in common.