A man does the unthinkable as he crosses paths with an 11year-old. >> Something with a kid on a bike. >> Yes. >> Okay. What happened? >> He's coming down the sidewalk here. I don't know, 25 mph. I can't judge. >> He's a big kid. He's got a helmet on, a big bike, and he's right down. >> What am I supposed to do? I'm 74 years old. I have a bad heart. I've got a bad skeleton. >> This This kid is a lethal problem to me. >> Okay. Anything in your hands? Yes, I did. I had a knife. >> Okay. >> My knife because you know dogs and things like that with me in just a second and then we're going to do what's called a show up. If how old are you? >> Uh 11. >> You're 11 years old. You're testifying that this is the person that possibly did this to you. Okay. Assuming you're going to press charges for this? >> 100%. If you pull a knife on my kid. >> Absolutely. So go ahead. >> Yep. >> Up at him. I just made it clear that I had one and he ought to get over or he might get cut.