4. If something is moving very quickly in the background behind you, you may sometimes want to turn around and explain to the camera what is happening and why. This will end badly.
5. Video cameras emit a sound that only babies can hear. This sound makes them vomit.
You can scroll right easily by holding down the SHIFT key and using your scroll wheel. (Firefox users trying this will end up jumping to old Web pages until a) Firefox releases a fix, b) they change their settings like so.)