Now I wasn't there to see the entire event, I have seen things like this time and time again. WHat probably happened is she let her kids run wild in the store, or was caught stealing or something to make the security ask them to leave (well within the rights of a store owner). So, instead of simply leaving, she got all up on dat and was angry that "how dare you motherfuckers" attitude.
You can see the circle of disrespected when the kids get into it. Then when the husband (I assume) gets into it instead of thinking "omfg my wife has a big mouth" he gets pissed that "how dare the security guard tase her in front of the kids".
I travelled all over the US and saw this repeatedly. Usually in your scummier places and yes I have personally experienced this with a woman of colour. The thing is, the attitude is, they are wrong, they know they are wrong but instead of accepting that, they come on all aggressive. See, most reasonable people would be embarrassed being asked to leave and get the fuck out of there to avoid further embarrassment. But nope, not these people......Yes, I've seen it with white people too and they too were low class/no class. Anyone remember that video in an asian restaurant where a riot ensued when someone was asked to leave? The one where a guy threw a plate and injured a young lady? It's not just blacks, but I find they are more prone to reactions like this.
The cycle will continue with the kids because at no time will the parents explain to them that they were in the wrong.......