Why are some dogs scared of fireworks and some dogs not? If their exposure to fireworks when they were puppies was a positive one they are less likely to react badly when they get older.  Fireworks are unpredictable - Guy Fawkes night is just another night for your dog, so the won;t be expecting the sudden onslaught of noise that accompanies the parties. The loud noises and flashes of light will be unexpected to your dog. Each firework will look and sound different so your dog will not get the chance to get used (desensitise) to them during the evening.... The Sunday Cafe is hosted and produced by Mel Homer, the technical editor is Geoff Rooke.