Sometimes, I approach the urban population and asks them for a picture. (If I can´t get a nice street shot, I´ll go for second best). This guy was hanging around the city core, obviously on some kind of mission. It turned out he really was on a mission – as soon as I started to talk to him he handed me some information about his church and tried to convince me to turn myself in.
I took some shots and handed him my card, if he wanted me to send him the photos. He never did contact me, so I guess I scared him more than the other way around. To bad – I like to give something back when people let me shoot their picture.