I used to greet them at the door with my bible in hand bits of paper sticking out to mark passages.

Never thought until now that I should let them talk for 5 minutes, then politely ask them to leave as God did not want me to convert infidels today.

When they called on the phone my daughter used to go into desperate young woman mode. "Oh my god... I am so glad you called me. I think I just ki..... umm never mind." Then she would hang up.