Aurora Business

In this April 19, 2016, photo, provided by Stacy Dean Stephens, Knightscope K5 security robots, at right, and background left, patrol alongside a pier, in San Diego. The robots can identify a vehicle parked in a certain location for too long or sense intruders at odd hours. The company expects to have several large mall developers in California start using the robots in late 2016. (Stacy Dean Stephens via AP)

“You’re not paranoid. But you are alert of the people around you,” he said. The father of two said he now looks for where the exits are, and in a store he scouts for dressing rooms or back offices should he need to hide. “I’m always thinking about if something could happen, where would I go, and what should I do?” he said.