There are several ways to deal with this problem.
Don't answer the door.
Don't answer the phone. If your family can't stand the incessant ringing, have the 2-yr-old answer. Or better yet, have your husband answer, sounding breathless, and say that 'we're BUSY', and hang up quickly.
Nah, just ask everyone else to tell the caller that you're otherwise engaged. If you live alone and don't have an answering machine/service, either put the phone in a closet, under a pile of pillows, or unplug it. Or turn the ringer off. Believe me, my life isn't so exciting that I have to be connected Every Single Minute, Day Or Night.
My friends all know how to say 'I'm watching XXX. Can I call you when it's over?', and we all understand that she's busy and she'll call us later. What's so hard about that?