Out of curiosity, I went to a website that had photos of people at Walmart.
Perhaps we should cut the guy some slack?
After seeing some of those photos, I might lose my mind, and start chucking stuff, too!
Here is one link I just found for your viewing pleasure. Maybe this is why the guy wigged out?
http://www.walmart-people.com/popular-funny-pictures.aspx
I needed a good laugh right about now - thanks a lot.