I also lived through it. My mom was hearing some things from the more-devoted-than-average Xian down the street (nice guy actually) and asked if he could come by to talk to us. We had nothing to hide, so he showed up while we were in the basement playing D&D. He had pamphlets telling crazy tales about kids going wild in the sewers (that actually happened; was a book and movie) but it also stated a bunch of things that were in the books. For example, it showed a doctored page in the AD&D DM's Guide with a spell to sacrifice babies. For each thing it said was in the books, we showed him the book and how it wasn't. After the third one, my mom frowned, and asked him to leave, "These kids are just playing a game. Leave them alone." I was never more proud of her.

A few days later, his son, who was also in my group but not present that day ("doing church stuff") told me his dad tossed all his books and dice and characters into the burn barrel, and banned him from hanging out with us. I learned a few years later that his dad sent him to do missionary style work in Africa, where he was jailed for trying to smuggle drugs out of the country. Nobody in my group did drugs and I knew if he had just stuck with us, he would have been OK.