Make it clear if that's what he thinks then the inquisition will come on over and burn him at the stake. Wait that's Christendom. LolIn the Arabic group field work, I met a hardliner who told me and my partner, (with considerable force), that the only prayer acceptable to Allah is when your forehead touches the ground. Nothing else counts.
Another very serious dude, from Libya, invited us in. Probably the scariest call I made. During the course of the call he explained all about how the West and NATO had destroyed Libya. That stuff I actually was quite informed on and agreed with him. (Even though we are "neutral" LOL)
What left me cold, and never to return, was his explanation of "hospitality" as he practiced it. One must extend hospitality three times. After the third time, if the visitor still has not come over to the "correct" point of view, if you see him on the street, it is........gesture for severing the head.