It took Chester forever to learn that he was to big to do the things he use to do as a kitten. He had to learn the hard way that to hang himself off of a chair or table that his weight would pull him all the way down and he would fall. He don't try to sit on my laptop keyboard anymore (when I have it out) since he is SO big now and that was his favorite kitten thing to do, sit on the keyboard and play with the curser as it moved. He has been terriably dissapointed that he can't do the things he use to do but he has adjusted well.....he STILL forgets now and then how big he is and it always makes for some good laughs.