.........he'll just say that the Society got better and they no longer make predictions-------Jules
Watchtower 2003 Dec 15 p.15 "Warned of "Things Not Yet Beheld" hints at 2033 / 34 as the next date.
If it's not possible to avoid discussions with your family, perhaps you could ask them to explain a few things like:
- Was God leading the WT during the time when they were making false predictions?
- The "overlapping generation" concept
- What proof they have that God chose the WT as his only earthly organization/earthly channel of communication in 1919?
Hopefully this should get them thinking.