Heh. I mean someone actually looking down the barrel. I got close in Budapest when this guy suddenly flipped after I took his picture:
He was a 'tour guide' who kept going up to people and giving them this speech in really bad, broken English about how he would show them all the best bits of Budapest. No-one was interested but he kept pestering them anyway until they actually walked off. And even then he followed them for a good 20 metres, running in front of them so they had to change direction to get away from him.
Eventually he started his spiel on my mate and we were similarly disinterested. But I decided to take a picture as he had a lot of character. After I took the first shot he span to look at me and started saying (again in broken English, but I can't remember his exact words) stuff like "you must have broken the world record for stupidity" and "if you don't want to die you must leave this place now".
Then he started trying to grab my camera. That wasn't going to happen. I held it away from him, still taking shots, while keeping him at arm's length with the other hand. The shot above is one of those.