Pomapoo Aggressiveness
My 3 year old male pom a poo is crate trained and we have always put him in the crate when no one is home and at bed time. In the past week, however, he has become very aggressive and has almost attacked my wife and I when prompting him to go in his crate for bed. Any thought would be appreciated. He also sleeps in a dog bed during the day when someone is home.