The hair spray can has no aim when it is flying around just as Oedipa has no goal when she is traveling around. The can is flying around bouncing off of whatever it hits and is out of control. Oedipa is traveling around San Narciso just going where ever people take her and really has no destination in mind. Both Oedipa and the can are traveling aimlessly around their respected areas. The can is flying around the room because Oedipa knocked the can over and the top broke off. The can then started flying around the room, "The can hit the ....