Excluding guns or violence, I think Retail stores love this sort of attention, the more aggressive the materialist is, the more the it makes other people want what they want. I seriously think that there
should be state/provincial laws that put the onus of protecting the public on the store. If you do that, you will see these types of scenes dramatically reduced.
Divide the store up via barriers. Let only X amount of people into those specific areas for X amount of time. Not a kneejerk reaction, but a cautious prevention against mob stupidity.
There's a difference between bargain hunting and winding up looking like a fool, or a herd of fools, on youtube.