Our dog Chopper (Jack Russell x Maltese) has recently begun showing signs of aggression when males are concerned. Seems to be mostly if i'm cooking and my husband comes near me he growls and gets 'nasty'.
I know that this might be that he thinks he's alpha male, but i'm not sure why this is only happening now considering Chopper is 5 yrs old.
We don't feed him before us and we make him go and wait on his bed whilst we eat. We don't feed him human food, and I'm not really sure how to combat this problem
Any feedback or advice would be welcomed.