A "Black Friday" request from a retail/food service worker to the psychotic bargain shopper

Probably the single worst day of the year for retail and food service workers is the day after Thanksgiving.
You would think that, having overeaten on Thanksgiving (as I intend to do,) people would be a little less energetic, or at least a little more calm, than they are on the day known to all of us as Black Friday.
I have heard a slew of different explanations from my co-workers as to why the day is called that, but they all boil down to the fact that the day after Thanksgiving, during the Thanksgiving Day sales, we are treated worse by shoppers than on any other day, including the ever-hectic day before Christmas.
On black Friday, people seem to lose all sense of proportion, pushing and shoving, grabbing and yelling over sales items they often wouldn't even have sought out had they been full price. The worst behavior is usually over electronics and kids' toys. While I haven't heard since the 90s of any stabbings over Sesame Street characters (yes, that happened, in Findlay, Ohio over a Tickle-me Elmo that wasn't even the last one in the store) I have experienced some pretty nasty outbursts on the part of impatient shoppers.

My request is this: In the chaos of big bargain-hunting, when you are psychotic over the idea that someone else might get to that on-sale toaster before you do, please remember that the person behind the counter, the person making your coffee, the person cooking your sandwich, checking your price, finding that item in the back room (or telling you the store is out of what you wanted) is an actual human being with real, measurable feelings, who does not deserve to have your holiday frustrations taken out on him/her. He or she has been hurried, harried, and hassled just as much as you have, (if not more because he/she is dealing with a mad rush of customers and probably won't get a break on Black Friday.)
Remember that it is Black Friday, and there will be big crowds, heavy traffic, and long lines in stores. There will be items out of stock because the demand for them is higher than the supply the store could get. Food that has to be prepared after you order it will still take time to cook, even if you are in a hurry, and if someone else ordered before you, their food will get prepared first. Gas will have a price on it. It might be higher or lower than it is today, but either way, no one in the store where you buy it had anything to do with the decision to set the price at that amount.
Yelling will not speed up the lines, brew the coffee faster, find the item you are looking for, or change the price. Neither will telling the other customers around your victim how lazy and stupid you think he/she is, nor will complaining to the manager or calling the store's corporate headquarters.
My request is that on Black Friday, wherever you shop, please remember to treat the staff as human beings. Even better, please remind at least one other person you know to do the same.
Thanks very much, and have a good day! ^_^