Kai seems to find fireworks amusing. He heard fire crackers a few times and he just starting barking and running to the window to find out who it was. lol..silly pooch. He's also afraid of my dad. Kai tends to be a bit shy with strangers (unless they're in our house, then he just "welcomes" them with a half an hour barking session). A funny thing that he is afraid of is the plastic bottom of his crate. I take it out to clean since he eats his raw bones/food in there and he just ran away from me, so I started chasing him with it LOL.