Just to warn you. I might be overreacting but I thought I'd alert you to a bit of an odd caller I had this evening. Someone rang my doorbell at around 4.45 and I'm pretty sure they were not expecting someone to be in. I asked him through the window what he wanted and he asked if a Michael Perkins lived here. I think he made it up on the spot. I got the impression he was 'casing the joint' and thought I should warn other forumites. He disappeared pretty rapidly and I didn't notice him knocking on any other doors.