so bates plays it safe and calls 911. >> i just wonder if there's an officer available. prostitute and her pimp out at southwest 33rd and south robinson. >> she walks right up to the window, inches away. >> how does it feel to be filmed? >> finally, a money shot for the video vigilante. the truth is, bates doesn't necessarily mind having his picture taken. in fact, he's actually glad this woman is recording. he thinks everyone, himself included, is fair game when it comes to being caught on camera. >> i think when i first picked up my camera 12 years ago, what i was doing was extreme. and now, when we're becoming a society where people, everyone has a cell phone, everyone has a video camera, everyone has access to the internet, what i do is no longer an oddity like it was 12 years ago. and i think it's a good thing. up next, shocking abuse, caught on camera. a woman summons all of her strength to protect her father.