I can't have a pet in my apartment because of the landlord's rules (pah!) but I can have a pet on my blog. Actually, I probably do have a pet spider or two in my apartment. They seem to follow me around. At my last apartment building in SF there was a spider that lived in a beautiful web on our front door frame for at least a month. She was still there when we left, come to think of it.
Thanks to Efren for the link.