They drives me crazy too. Had one pop around few weeks ago, I ignored the door, didnt answer it at all as i knew it was them somehow without even looking out my door peephole! Got leaflet and put it in the bin straightaway.
The thing that annoy me the most is they know i am deaf and living here so when i ever open the door, they start to sign straightaway without me having to say oh i am deaf.
One day i will tell them to go away in not a nice way!!
