What is your cage set up? Although I agree, I don't breed any traits that I find unappealing, I have kept extra males for longer than needed out of convenience. I use ground pens, so I have used small travel bird cages inside the larger enclosure with the bad bird inside. That way they still get to be with everyone with causing problems. How old is your male? If you're only keeping them as pets, he may calm down as he reaches a year old.