"@Darrell, the aviation industry (if not the world) is full of a general rule for all, and then approvals for others.  

eg.
Generally people are not allowed to drive cars or fly planes, but if you obtain a licence you can do so.  Commercial UAV…"

"@Greg, If you continue to watch that video, Simon flies over people quite closely. I think is quite amusing that you think that it's ok for Simon to fly a couple of metres of someone's head and then hover over person with a metre of two clearance is…"

"@Simon, you sound jealous.  If you're saying that you should "never fly over a person", then why did you fly repeatedly over these people in your video.
http://vimeo.com/15867732"