Let's say you have a farmer named "John". John, whose last name is Zombie, operates a dairy company called "Zombie Dairy". Every day, there are a bunch of people who give John milk, have this milk added to their account, and take milk from John. People earn interest on their deposits. When John has a lot of milk sitting around, he uses it to buy another cow. Occasionally, if a lot of people want milk at once, he has to sell a cow to give them their milk back.
People are happy to give John milk, because their deposits are insured by the Federal Dairy Insurance Corporation, which will pay them back even if John somehow manages to go broke.
Zombie Dairy owns 50% of a cow named "Call Me Olive", who cost 40,000 gallons, and who ate an additional 20,000 gallons worth of feed while growing into a milk-producing cow. However, just yesterday Farmer Brown was walking around town and discovered that recently 1% of Call Me Olive had been sold for only 200 gallons, and that before that 1% of the cow had been sold for 210 gallons. The problem, he was told was that the cow has dry, empty, flacid, airy, underdeveloped-lactation teat disease.
Zombie Dairy is now in trouble. The federal dairy regulators demand that the cow be "Marked-to-Market", which means that the cow is now only worth 20,000 gallons.
"Nonsense", says Farmer Brown. My cost basis is 30,000 gallons. I've put 30,000 gallons into that cow. I can't see any disease at all on that cow. My 50% of that cow is worth 30,000 gallons.
Well, who do you think is right, Farmer John or the Feds?
There's more bad news for Farmer John. In order to minimize the chance that they will have to pay out, the milk regulators demand that all dairies must keep their cows worth roughly 10% more than the amount of the milk deposits they owe. Farmer Brown was already at this limit, and since his cows are now worth 20,000 gallons less, he must sell roughly 200,000 gallons worth of cows in order to satisfy the requirements of Federal Dairy Insurance Corporation. This lowers the price of cows and causes other dairies to also have to sell their cows.
Farmer John has even more problems. Call Me Olive's sister, Nina, is even sicker. The Feds, however, don't currently care. This is because Farmer John owns all of Nina, and hasn't placed any of her on the market recently. Consequently she has no market price, allowing Farmer John to continue to carry Nina's value on his books as her cost basis.
Farmer John initially reacts with denial. "My cows aren't sick," he says. He resents the "unnecessary" intrusion of the government into the operation of his dairy. Left alone, he says, Call Me Olive would eventually have produced enough to pay back the milk invested in her. The problem isn't disease, he says, but the stupid government regulations.
However, if Farmer John were to take his cows to market and sell them, the proceeds wouldn't be enough to pay back all of Zombie Dairy's depositors. In fact, Farmer John doesn't know it, but Zombie Dairy is already dead.
Gradually, as awareness of his plight seeps into Farmer John's consciousness, he realizes that he's in deep trouble. He passes from denial mode to panic mode. Farmer John knows that Nina and some of his other cows will soon be so sick that not even the Federal Dairy Insurance Corporation will allow him to carry them on his books at cost basis value. And he doesn't have any healthy cows left to sell.
So, Farmer John begins buying sicker and sicker cows. These cows might die, but they might recover. Farmer John needs to turn a big profit in a hurry, and his only possible way out is to start gambling on sick cows.
When the Feds finally take over Zombie Dairy, their losses are much larger than they would have if they had taken it over earlier, before Farmer John paniced.
Beware of Zombies.