Wow, that is one angry cat. It makes you wonder why she has it in for your friend Alex.

I don't know if they sense something in people or what, but my RB Captain would always bite one of our friends whenever he came over to the house. Every one else he was fine with, except for this one guy. But the guy, even though he knew Captain did not like him, for some reason or another, always tried to pet him because he figured he could gain his trust, but Captain would always go to bite him.
It boggled our minds as to why he was like this.

Do you think it could have to do with the persons scent?