I still felt far removed from reality a couple hours into my shift, & a person with a Guy Fawkes mask tried to enter the library. My coworker told him he couldn't enter with the mask on, so he took it off. He sat in front of someone he didn't know, & began to talk at him, about some radical ideologies I guess. I didn't hear much of the convo. But it was scary enough for someone to call the cops. Three cops showed up at the branch and asked the dude to talk outside