There was nothing friendly about that half smile, if anything it was more sinister than anything else. Connor didn't want to know what the man planned or wanted to do with that knife. However, if Fred was hoping to scare Connor with it, he wasn't going to get the satisfaction of a reaction. Connor had dealt with all sorts of people in his career. As long as the man kept his distance from him with that knife, there wouldn't be any issues.
The minute Jughead groaned and called out for his dad, FP moved to his boy's side. He glared at Connor for disrupting Jughead's sleep and making his boy cold. "It's okay, boy. This is Dr. Rhodes and he's here to check on you."