I've noticed recently that my nephew's cat is not reacting well to him. He's acting territorial with me and with my cousin and will out of no where go into a sort of strike position when my nephew gets near him. A lot of times he's fine, and then bam he's not. My rule is if you do something to bother the cat then don't come crying to me when the cat retaliates, but now we're talking about the cat being Mr. Grumpy pants for no apparent reason. One thing I have noticed, which allows me to intervene before it escalates is that it always starts with him sort of opening his mouth like he's panting. I want to nip this in the bud now. My nephew LOVES this cat and I want to keep it that way. He already gets scared when the cat goes into psycho kitty mode, and I don't want him to grow up fearful of animals.