Ferdy: Look, I'm sorry if I made you angry, Linda.
Linda: It's not you, Ferdy. I'm just not used to be chased around a mall in the middle of the night by killer robots.
Walter Paisley is cleaning the floor and encounters the first robot. The whole reason the robots are patrolling at this point is that the shopping centre is supposedly closed to customers, as it is nighttime. However in this scene you can see quite a few people shopping on the upper tier of the mall above Paisley.