Why does this rescue dog suddenly become aggressive after 9pm?

Answer 1

You need to realise what his past would of had. He could of been beaten at night or be scared of the dark! With my rescue if you sleep in front of him he gets scared and starts licking you to make sure your not dead because his previus owner died! hat other animals do you have? Other animals may cause stress. Im a vet and it might be wise to find out this dogs past and health. He may have worms which come active at night, causing pain and itching. Its best to get him checked out ok =) Good luck and enjoy your rescue!