Next time, have some fun with the loving 'dubs. Ask if someone else is listening in on another line.
If they deny it, you can go into a "revival preacher" voice and say, "BY THE POWER of JAY-sus, I command you to answer truthfully!"
Or you could say, "You must be having some trouble with your telephone line; the wye-meter I have recording this conversation shows that someone is listening in."
There is no such thing as a wye-meter that records phone calls, but your average window-washing elder won't know that. You might scare the squirt out of him.