Heh, negotiating with them is quite difficult. Cats aren't known for being reasonable! I'm pretty unreasonable sometimes too, so me and my cats get into little spats, especially the little brat... Sometimes he'll even go be naughty after such a spat or if I ignore him. The other one is pretty good about doing what hooman wants him to do - I got pretty lucky with him being such a good boy. It sort of evens out how naughty his brother is...