I met a guy in High School named Vinny. He overheard me and some gaming friends talking about the game. He was curious and asked to come to a session. we said "sure." He came, watched for a while then made a character and joined the group. He started coming to every session and became an avid player. He bought the PHB. He bought dice. He bought dragon magazines. He even came to the frequent "off-night" games we played, sometimes 4-5 times a week in addition to the regular Sunday game. He played with us for about 2-3 years.
Then, he met Jesus in a Waffle House at 3 AM.
Jesus told him to change his life and go to church.
Then, after going to church a few times, Vinny bought a religious book about the evils of DnD. He talked to his pastor who told him about the evils of DnD. Vinny quit gaming with us, but still hung out with us for a while. During this time he used every opportunity he could to try to convince us that DnD was bad, immoral, escapist (in a bad way) etc. etc.
I tried to reason with him countless times. Finally, Brian told him to get lost.
I ran into him a few times after that, he always seemed weird. I didn't even recognize him anymore.
BTW, he was also a "Dead Head" before he met Jesus. I even went to two Grateful Dead shows with him before he met Jesus at the Waffle House. After Jesus talked to him, he also stopped listening to the Dead.
Speaking from my psychological education, I'd say he had a very dependent personality and was always seeking some sort of tangible fulfilling relationship that was beyond what "normal" people desire. He always seemed preoccupied with the dynamics of friendships and frequently talked about who was better friends with whom. When he was into the Dead, he was a fanatic about them. When he was into gaming, he was a fanatic about that. When he met Jesus, he became a religious fanatic.
He's just a fanatic.