Dude, you better stay away from margarine, I read on the internet that that stuff's only one molecule away from asphalt! Oh, and never ever pump gas, a study last year found there are far more germs on gas pump handles and ATMs than there are on just about any other surface. And
WasabiPoptart can joke, but the sheer number of people who've died of dihydrogen monoxide poisoning is staggering!
But seriously, this Walmart meat is bad for you because they have "the worst slaughterhouse ever" thing is simply hilarious. Walmart buys their meat from the same slaughterhouses that all of the other grocery chains buy theirs from. To have their own slaughterhouse just for their stores would be ridiculously expensive to the point of being cost prohibitive. They can sell meat for lower prices because they buy in larger quantities and they're willing to take cuts that don't look quite as pretty as others or have a little more fat or gristle than the other stores are willing to buy and because the meat arrives in their outlets pre-packaged so they don't have to employ butchers at each individual store, like Safeway, Kroger, or Albertson's does. The meat even comes from the same herds of cows as the meat sold in other stores. Also, all slaughterhouses are required to have gloves available to their meat cutters, and as I'm sure
LittleKagsin could probably tell you, while it's not possible to have a sterile kill floor (the mere fact that something's been killed on that floor makes it non-sterile as blood and other bodily fluids rush out of the body), they do have to stop production every set number of hours (usually 8) and rinse, wash, and sanitize the entire operation, the machines, the floor itself, the walls, the floor drains, the equipment, the knives, everything; with enough sanitizing chemicals to make a hospital look like a junkyard, before they're allowed to turn everything back on and get back to work.
And don't even get me started on the water quality of tap water. I know more things about tap water than you'd even want to consider, and things about most of the big national brands of bottled water that would curl your hair, from working in the water purification industry.
Now - please believe me when I say that I'm not talking about this stuff to make you feel bad in any way, or to make fun of you, or anything like that. I'd be willing to bet that no one here is. I just hope that you'll do a little more research about products (from reputable sources, not the internet) before you start making decisions about them. It might help you live a more comfortable life, or a more exciting life, or even just a slightly more relaxed, less paranoid one.