I posted once before about my 1 year old, Mocha (neutered) who we thought was a feral cat that was rescued by the Humane Society, and the problem we have been having with him biting and bullying and the fact that he refused to be groomed. Well, after spending 2.5 hours two nights ago at the emergency vet office and $250.00 later, my problem has obviously escalated. Apparently, 4 or 5 days ago, Mocha once again attacked Max, our newest addition, a 4 year old neutered male (had him 4 weeks) and bit him on the tail, unbeknownst to us. Two nights ago, I got home and found Max with blood and pus dripping down his tail, so I bundled him up to the vet where i was told he had an abcess from a cat bite. (We know it wasn't Baubles, my 3 year old female MC...Mocha's reputation precedes him). Mocha is currently 1 year old, and we got him first, after the death of our Casey. Then 3 weeks later, we got Baubles (our sweetie). Baubles and Mocha would rough house all the time and you would hear the occasional screeches and hisses between them, but they have always tolerated each other. Mocha, unfortunately, has always had a biting problem, and we have done what we could to correct this. Anyway, Mocha's latest thing is to run and attack from the rear...we caught him doing it to Baubles a couple of times right before we got Max, and he has tortured Max pitifully which upsets me, because Max is not having a quality life that he should. My mom feels that there are occasionally "bad animals" that just can't be trained or anything done with them....So, it appears I need to make a decision..Mocha vs. Max.....Any suggestions, before I have to go down that road? (BTW..we have tried a myriad of things, per the books....Starting to believe that Mocha is just mean...)