As a JW advised me once, put them on the defensive. Ask questions. Question authority, especially arbitrary authority. If possible, go to a local minister or priest and ask them the same questions; then compare responses.
If you answer the 'phone, log every call, writing down the date and time of call and what was said by each party.
Ask them if you, as an adult, have a right to live according to your own conscience.
I'm riled!
SandraC