You are wrong
Video shows-—>>
The black kid sailed out of the store and refused to show the receipt and buzzer went off
The greeter walked out and was writing down his license plate number on his clipboard
Kid runs back and grabs clipboard
Blows are exchanged after that
The video at http://www.tcpalm.com/news/2009/dec/30/walmart-greeter-beating-palm-bay-was-self-defense-/ seems to show the kid walking out of the store carrying a clipboard and then it looks like he is doing something like he is trying to tear up papers on it.
Yes, I would say that is correct. This video does not show him taking the clipboard from the Wal-Mart employee, but maybe this is an edited verson not showing the first part.
I can certainly assume that what you said is exactly what happened - makes sense.
Thanks.