It's about time someone put their foot down in regards to the stubborn consumption of non-edible foods, and since I see none of you lazy asses are stepping up to the plate, it looks like it'll have to be me.
Not everything technically marked as "food" is edible. You can't just go stuffing every so-called food item down your throat all willy nilly, without asking questions. For instance:
Liver is often considered a food, but have you smelled that shit cooking? It smells like a decomposing corpse inexplicably being heated on the stovetop. And the biggest telltale sign that it's not meant to be eaten is that no one bothered to dress it up with an acceptable name. You know, like when you eat dead pig, it's daintily called 'pork.' And when you eat cow carcass, it's politely referred to as 'beef,' 'hamburger' or 'steak.' No one ever intended you to eat liver, or they would have come up with a palate-friendly name for it, like 'binket' or 'dwan.' Would you eat spleen? Ovary? How about lung? Then liver is likewise not edible.
Yams. I've seen people eat yams--and no, they weren't starving waifs who had to dive into dumpsters for sustenance. They chose to eat yams--in spite of the fact that yams look like something a Beagle recently gave birth to. Not edible, unless you also snack on Beagle placenta.
Mincemeat pie is an abomination. At no time should the words "meat" and "pie" ever be in the same sentence, much less in the same word. Otherwise, what's to stop us from sitting down to Pig's Feet Pie or Pork Meringue Surprise next Thanksgiving? Trust me, not edible.
Clam chowder. I've never actually tried this, but that's only because I don't eat anything that looks like a hobo just puked it up. However, if I were, by some strange miracle, to be talked into eating puke, it would have to be because it was at least given a tantalizing name to lure me in. If someone were to ask any normal, right-thinking person if they'd like a bowl of clam chowder, the only possible response should be, "Fuck you and the hobo you've been partying with!" Only in select situations should you ever consider eating anything with the word 'clam' in the title, and never should you eat anything described as 'chowder.' Why? Uh, not edible.
Cheerio Sandwiches. Sudiegirl claims it's perfectly okay to eat Cheerios-and-peanut butter sammiches. But she's nuts, so don't listen to her. I see her train of thought--"Cheerios are good. Bread is good. Peanut butter is good. I have an idea! Let's smash them all together in a pile and I bet they'll be great!" Those old Reese's Peanut Butter Cup commercials started this kind of thinking, ("Hey, your chocolate got into my peanut butter!" "Your peanut butter got into my chocolate!" Two great tastes that taste great together!) and I'm here to put a stop to it--it's just wrong and dangerous. Try applying that logic elsewhere and you'll see. "Babies are good. Rock concerts are good. I have an idea! Let's take our 6-week-old twins to see Rob Zombie!" Bad idea. Also: "Moms are good. Sex is good. I have an idea...." See? It's a slippery slope that starts with a few ridiculous food combinations and ends with deaf babies and mom rape. So, Cheerios Sandwiches? Not edible.
There's a lot more inedible foods than what I've listed here, so feel free to remind me of any I've left out--but just typing out this short list has made me nauseous. I'm going to go puke up some chowder.