What about real estate agents doing viewings, when the previous tenants haven't left? I've read a couple of reviews (on allagents.co.uk) where tenants complained real estate agents would knock and then just walk in, without giving them the time to answer the door. I had that experience myself: I was supposed to visit a bedsit with a real estate agent, and when we walked in, the tenants (a young couple) were in bed, and stark naked... Since it was a bedsit, we couldn't go to another room, and the real estate agent (a man) 'didn't have the time' to wait for them to get dressed, so he showed me round the flat (1 room with American kitchen + a small shower room) there and then! I was so embarrassed, I couldn't wait to get out!!! The worst thing is, he was extremely pushy, and tried to get me to take that flat: he had the contract all ready in his briefcase, and shoved it under my nose. If I had agreed to take it, he would have made me sign the contract right in that room, since he 'didn't have the time' to go back to the agency either!