Nope, not expensive at all, just a phone camera, and not a great one at that as you can tell by the resolution! Even if the teacher confiscated the phone off the lad, theres no way he could make him delete the video. Im persuming this is what happened as the teacher would hardly NOT notice the phone, the amount of noise the guy is making!!!
You'd be surprised at just how much of this stuff goes on, Im not saying Jackassing but teachers, students, people gettung filmed on phones and then been put up on youtube. Everyone I know has put up some kind of video...it happens...and theres nothing anyone can do about it really! ...except hope that they arent caught on camera doing something embarrassing!
Shamrock, x