It seems that Kat hated Coop from the first moment they met. But Kat had just been on the receiving end of a baseball. Not just any baseball. A baseball thrown by Millie... I'm pretty sure that you would have hissed at the first thing you saw if you were in his position!

Coop then attacks Kat with a wave of insults, not the best way to make a friend... Millie does the polar opposite; she welcomes Kat with open arms and insists that they keep him.

How would you feel if you just landed in a foreign country or an alien world and the first creature you meet hates you and wants to be rid of you and the second loves, feeds and wants to look after you?

Then imagine that this evil creature seeks up to you while you are sleeping and steels your only way to talk to,or go home. You would try to get it back! But how? You can't reason with this creature! So you try to take it by force. But then your only way to see your family again is destroyed...

Now you are really mad and have made it your goal to cause as much pain and humiliation to this evil creature, to Coop.

Coop has hundreds of insults about Kat’s appearance. But in Fangs for the Memories Coop complements and enjoys playing with Kat. This means that he doesn’t actually have anything against Kat or his appearance. In Strange Kat on a Train Coop also tells Kat that he has to admit that one of his abilities is pretty cool.

It is only because Coop knows that Kat is an agent commanded to threaten Humanity that he despises him so.

Coop’s point of view is clear and obvious. He is a 10/11 year old kid who loves destroying aliens in video games, Watching Captain Blasteroid and saving the Earth. Therefore no matter what Kat does he must be stopped.