This is quite possibly the worst instructional YouTube video I've ever seen.
I take that back. This video is by far and away the biggest waste of time I've had in a long time.

The setup; I needed to figure out how to release the brake calipers on a Campy Record bike to swap out tires for a friend.
This video is 4 and a half minutes of absolute horseshirt to explain what could be filmed in five seconds. The shots of the chain movement almost made me send this guy a box of dog**** to his home just on principle. ( I would never really do that_ )
Un-freaking-be-leeve-able.