When I read the thread about trumans experience with the brothers making a call I thought:
Why not feign amnesia? You answer the door and say you are not Brother/Sister So & So. No, you have never been a JW. No, you have never been to a Kingdum Hall.
When they look confused and persist, you insist that they are mistaken. Tell them they do not look familiar, however, perhaps you saw them at the local Catholic church? Could that be the confusion?
When the insist that you are a JW, you insist you are not, never have been and if they mention people you know or things you did, you say you have no recollection.
Then you tell them you hit your head (any where will do, just so you were knocked unconscious) and you have no recollection of anything of the last 1-5 years. Use whatever number fits the bill.
When they are skeptical, you tell them the people you live with found you and helped you. They told you they were family and you believe them. You feel it in your gut. If they ask if you have seen a doctor, you say *I don't remember*. You have amnesia, remember?
This method will take all pressure off of you to meet with them, have a sheparding call and try to give them the answers they want without being DFd or without you committing to going back to the meetings.
I think we need to come up with new ways to handle those home visits the brothers make. This might work.