Visible crew/equipment: When Mrs. Hafer keeps Drake back after class, there is a long shot and Drake says, "What is this about?" At this point you can see a fluffy red boom mike between Drake and Mrs. Hafer.
Continuity mistake: When Megan loads the tomatoes into her machine, she only loads three tomatoes. When she attempts to shoot at Josh, she shoots all three tomatoes, but when her mom clicks the button again it shoots another tomato.
Other mistake: When Drake and Josh are in jail, Drake is making a call on the pay phone. But if you look close you can see he just dialed "2" over and over.
Revealing mistake: In the scene where Jerry cuts the little girl's pigtail off, it is obvious she is wearing a wig.
Other mistake: Drake asks if he can have a Doctor Fizz and his father replies that they are all out. In the next scene with Megan and Josh, in the background there is a full bottle of Doctor Fizz.
Chosen answer: It's just a screaming fan that knows everything about Drake.
BigOLB