Re: Puppy Dead of Fright.
I would guess the poor puppy had a heart defect to begin with to have such a terrible reaction.
I desensitise new puppies to fireworks so fireworks = something pleasurable eg a game with toys and treats.
When I walk Chloe late at night and there are random fireworks Chloe never flinches while I jump a mile.
Amy the dog before Chloe was desensitised but when she was old suddenly developed a fear of fireworks. She had a degree of CCD (canine cognitive dysfunction ) so I think her brain registered familiar sounds differently and she was terrified. So TV on loud and curtains drawn tightly on bonfire night.
I worry about the farm animals in the fields and the wildlife, fireworks must be terrifying for them . I have seen a herd of cows spooked charging around the field they could easily get hurt.