My cat just over the weekend began to hiss and "growl". My cat had jumped onto the kitchen counter and jumped off when he realized I was walking into the kitchen. Apparently he had been drinking water out of a bowl (that my boyfriend figured out). My boyfriend then tried to reach for him when a board game that was on the floor accidently leaned/fell over to my cat and now he hisses and growls at my boyfriend. How do I retrain my cat to be on good terms with him again. It's the first time I have ever seen my cat like this. Don't know what to do.