Just had two at the door (again!) who were very persistent. They obviously sent out the big guns today. Anyway, I had a bit of time so questioned them on how long humans have been here and of course they reckon it's just about 6,000 years as it says so in the bible. When I told them that was preposterous they tried to convince me it wasn't! As I never got to see Queen Victoria, they asked, how could I be sure she was real? Therefore, how do I know Darwin's theories (and they claimed them to still be "theories"!) were anything but fairy stories? I was lost for words with their stupidity and resolved there and then to never get into discussions with these clearly mad people ever again but how do you go about politely shutting the door in their faces?