Ummm no, I have always either had my own carpet cleaner or got some well known company to do it for me like electrodry or someone. Sounds very creepy tho, is anything missing??? Maby he's canvasing your house for a breakin??? Sorry to scare you but something similar happened in our street a few months ago, but it was people (well dressed) supposebly selling water filtration systems, they asked to come in and discuss it with you. Yes they came to our door, but after seeing 2 big nasty looking dogs on the other side of the security screen decided it wasn't such a good idea to come in. About a week later ther were 4 breakin's in our street, the perps got caught, guess what, same people selling water filter thigies. Can never be too careful.