Because I need someone to watch him. In my dreams Chris wasn't supposed to stay with me for longer than a week. His parents had sent him to California so he could go to this special needs school, so I had D watch him while I was working a case but then I might have pulled him out of school and had him stay with me instead. So he needs somewhere to go during the day and I don't really have any friends in the dreams who don't work with me.