I was just thinking about this thread and realised how rusty I am. I forgot to try bringing up this verse:
1 Corinthians 11:26 (NWT ) "For whenever you eat this loaf and drink this cup, you keep proclaiming the death of the Lord, until he comes."
'If the "coming" (parousia) happened in 1914, why the heck are you still doing the memorial, anyway??'
Not that it would have stimulated any more discussion; they were already halfway out of the gate anyway.