When watching professionally-run displays there is little chance that you will be injured, but when dealing with fireworks at home both those setting off the fireworks and bystanders run the risk of mild to fatal injuries.
It is important to remember that fireworks are made with gun powder and do not always function in a predictable manner. For example, firecrackers that explode sooner than expected or rockets that have a delayed explosion. Even sparklers which we tend to think of as harmless can ignite clothing, causing severe burns.
Please remember that fireworks can cause blindness, third degree burns, and permanent scars. Keep yourselves and your children from becoming one of the seven thousand people who suffer firework injuries each year.