He will pee on things when his feng shui (sp?) is disturbed...a small piece of wrapping paper on the floor...lots of presents in places he doesn't think they should be...stange people in the house. Basically about anything that disturbs his patrols, he will wreck vengeance (in the form of peeing on something) but otherwise is the most awesome cat I have ever seen, so we tolerate the occassional message that we are disturbing him. I had a feeling that he was going to do something but unfortunately the apartment is small and there was not another place to put the quilt and hoop. *sigh* I will survive and so will the cat. Someday I will have a room of my own to keep such things in!