A few months ago my Grandfather attempted to try and get me to go to church with him and the rest of the family (This happens every few weeks). As usual I refused and told him that I was Atheist which meant that I don't go to church. Then he asked me something new, he asked me why I didn't believe in something that people had believed for thousands of years. After all, billions of people could not be wrong.
Instantly in my head I said "Wow... could you have come up with a stupider argument?" Then outloud I said "So? Billions of people also believed that the sun revolved around us, that the Earth was flat, and that there were unicorns. Hopefully one day society will realize they were wrong about this too!"
I haven't been asked to go to church since.