i know what your going through. my kitty always wants to go outside. the strange thing is, he's afraid of anything other than the back yard. he's never run away (whenever one of my idiot family members left the door open), but he has pulled a stunt here and there. my father lets him outside constantly, always watching what he does, and it bothers me alot. whenever i try to tell him about how much it bothers me, he just yells at me. anyways, the best advice is to ignore him, and whenever you have to open the door, pick him up or block his way so that he can't get out.