Starting QBs in the NFL have a camera on them full time from the minute they walk out on the field for warmups until they walk back into the tunnel at the end of the game. If we want to see Brady's reaction to McGowans tackle on 2nd and 9, its on tape. If we want to see O'connell smiling halfway through the defensive series following his 3rd and out, its out there somewhere.
Sanchez probably doesn't know this. May not be the case in the Pac 10. If Mangini fine his player $1800 for a bottle of water, what would the hot dog cost during a game?