There was a guy at college who was very hostile to the Lord. I still pray for him, but as we got to know each other, he realized that he'd made a whole bunch of generalizations regarding Christians that simply weren't true, and this was back when I still sometimes referred to myself as a fundamentalist. He once said I was the most open-minded Christian he knew, and I assured him that not all Christians were narrow-minded. Thus, he's now at least more friendly towards the Christian community, although he's not a Christian himself.
He seems to have made leaps and bounds, though, in his walk. He was raised in a Christian home, but he was really just a hippie wannabe. He turned to hard core drugs and alcohol, is covered with tatoos, some of them pornographic in nature, and he's really an arrogant guy, but once you get to know him, you see that he's just very lost and confused. Nowadays, he's drug free and has been sober for 1 year. So, thanks to him, I now see people who look like him on the street and instead of keeping my distance, I wonder if maybe they're just looking for help.
My youngest brother, on the other hand, believes himself to be smarter, wiser, and all around way past those "primitive" beliefs. I still don't know what to do about him.