May be too late for that. Semi is 6 years old, Leroy is 7. Both of them come to us this way. It's not just thunder, fire crackers, gun shots, and they act the same way. Semi we have had 4 years, got her from someone who said they didn't have time for her. Awesome animal! Minds great, great temperament, no issues. She listens better than most kids, including my own.
Leroy come to us from the local Friends for animals. A no kill shelter. My daughter works there and he had been there a while. It's hard for them to adopt out older big dogs. He is 100 plus pounds, and does have some energy when he wants to play. A retriever he is not, I don't think he has ever been taught the game of fetch. His issues are he likes to be a road block. Hasn't quite caught on to the let the human by idea. Also, he isn't an alpha male, has never marked his territory, but thinks doorways are something he must be first through, and he has to go through them at top speed! But he is a very loving, great tempered animal otherwise.