Visible crew/equipment: When the Pest is trying to hustle the crowd as a blind man, there is a Hispanic kid in the background watching. He starts making faces and throwing up hand symbols at the camera. He was either a kid who sneaked onto the set or an extra who decided to get noticed.
When Pest leaves the bathroom at the beginning of the movie, you can see a towel wrapped around his waist. The shot goes to a full body shot and you see him whip the towel off. The next shot is of his knees down and the towel is back.