Here's what I did last year.
We talked for a while first about the weather, but then they exposed their real reason for coming. I thanked them for thinking of me, and then as they were turning to leave, I said "I have question, I would like to have your take on it. You know the later part of 1 Cor. 11, where it describes the Lord's evening meal? It says to keep doing this in remembrance of Jesus, but then at the end of verse 26, it says to keep doing it...until he arrives. Now it seems to me that since he has arrived in 1914, why would there be a need to keep having the memorial?
These were 2 elders, and one said he didn't have an answer, and the other said because it says to keep doing this in remembrance of me. I said, it does say that but the very last thing it says is "until he arrives". They said they would have to get back with me on that. I have seen these 2 guys numerous times since but they never made mention of it. Don't expect to see anyone this year, but if I do the question will be brought up again.
Now I know the society has a spin they put on this, I'll see if any that come by know what it is