“It’s kind of scary if people do that,” biker Nikolay Pavlidskiy said. Samantha Castro walks her dog on the trail pretty much every weekend. She was terrified to find out about the metal barbs. “We ...

“It’s kind of scary if people do that,” biker Nikolay Pavlidskiy said. Samantha Castro walks her dog on the trail pretty much every weekend. She was terrified to find out about the metal barbs.