Search "Black Friday" on youtube for literally hundreds more such reports, clip compilations and even tips on how to navigate your revolting flesh bag through the megastore aisles and escape without getting horribly, horribly injured or perhaps even killed while clinging like a wretched maniac to a really big telly. (Even, more horrifyingly still, what to wear while doing so).
As with working out how one might possibly react usefully to so many other things in the world today, there's a fine line between sincere incredulity that this is the sort of thing millions of human beings actually do (and not just in moments of psychotic greed but repeatedly, and voluntarily, year after year) and the smug self-satisfaction that comes from telling yourself that at least I'm not one of them. That's mainly, I think, because you are one of them, or could be far more easily than you're willing to admit. "In choosing for myself I choose for all mankind", as Sartre wrote, which means that for every well-meaning mother who just wants the best [new X-Box] for her kids and will literally trample over an old lady with a zimmerframe to get it, or misfit beta male who just wants a 43-inch UHD smart TV below which he might more efficiently masturbate to the niche porn of his choice, there but for the grace of Guy Debord, go you.