I haven't had cable companies come to the door but get lots of stuff in the mail from them. In fact I posted a good deal I got today in another thread. The Roku one. I never open my door anyway to anybody unless it's someone like the Plumber who I called. I've heard too many instances of whoever was at the door forcing themselves in and then beating the owner and robbing them. My excuse is I can't open the door because of my dog and it's believable because Pickles is by the door barking so loudly that they probably can't even hear me.