We have them quite commonly coming to our house. To the point I purchased the Satanic Bible (which is an interesting read anyway) and always have it to hand when I answer the door. 'Please, allow me to tell you about Lucifer, the Lord of Light'. At Halloween I give them sweets and enjoy their confused expression.
They soon speed on their way.
I used to do that and it was fun (I have also read the Satanic Bible and
was a Satanist).
I have since mellowed to the point where I don't really care and can usually 'fog them out'.
I know in my heart that I am a Hindu and 'that is that'. I also know they are wasting our mutual time and sometimes, I'll just come straight out and say that too, rather politely and they go away.
Other times, I will see them coming and pretend not to 'be there' even though they know I am....it's like "I am ignoring you....".
However, there are those times when I will 'hear them out', but I will usually say 'you have 5 minutes...just state your case and go'. Then, they'll usually discuss a certain pamphlet they are handing out and show me certain passages in that and in the Bible and I am like.....'hmmm, yeah...okay, that's cool...' I take the address of their Temple and go 'I'll think about it, but the more you guys bug/push me, the less I will be inclined to 'think about it'.
They haven't been around in ages after that...