In a news item that dates back to late August but was just reported on in Sunday's Boston Herald, a half dozen staff and students at Harvard Medical School became ill after they drank coffee from a vending machine that had been laced with sodium azide, a preservative that is commonly used in laboratories. The story reported that all the afflicted worked in a laboratory where they torment mice in immune system experiments.

boston / CC

While we would never wish poisoning upon any living being (talk about a painful way to go) it does have us wondering if karma might be at work again.

Recent publications from Harvard Medical School faculty members included experiments in which mice had 25 percent of their skin burned off by placing them in 190-plus-degree water and were then injected with increasingly large doses of E. coli to see at which point 50 percent of the animals would die. In another experiment, mice were injected with cancerous cells to induce the growth of colorectal tumors and then injected with a herpes virus to see how it affected the cancer. At the end of the experiment, the animals who didn't die during the study were killed and dissected.

It does look like some of the animal torturers experimenters at Harvard have gotten a taste of their own medicine—literally. Let this be a lesson to you, Harvard: Never underestimate the fury of a mouse scorned.

Written by Alisa Mullins

When I was a kid and was really, really bored, I amused myself by holding a thermometer up to the heater in the bathroom (before you judge me, understand that I was living in a tiny town in Oklahoma with very few entertainment options).

After watching the temperature go up and down several times, I decided to see what would happen if I just held it there until it went all the way up. The result was that the end of the thermometer broke and the mercury spilled onto the floor. While it might sound like I wasn't very bright, I at least had enough sense not to touch the mercury when cleaning it up. And a good thing, too, since mercury exposure is bad news, as it leads to an increased risk of severe health problems and neurological symptoms, including memory loss, personality change, tremors, spontaneous abortion, and damage to a developing fetus. Fun stuff, huh?

Of course, broken thermometers aren't the main cause of mercury poisoning. Any guesses? That's right: Eating fish is. A writer for Salon.com memorably called fish "the pathway of mercury to our bloodstreams." Long story short: Burning coal releases mercury into the air. The mercury then cools and falls into the water, where it is transformed by bacteria into even-more-toxic methylmercury, which works its way up the aquatic food chain to the "Captain's Platter" at your local seafood restaurant.

The good news? The Obama administration has announced its intention to take action to cut mercury pollution. The not-so-good news? That's only half the battle.

That's why we're letting people know that they can block mercury poisoning right now by cutting out fish. Our new "Got Drain Bamage?" billboard, shown here, has just gone up in Madison, Wisconsin, because of concerns about mercury in fish from local waters. But even if you don't live in Wisconsin, don't think you're off the hook: The fish you buy in the supermarket can come from anywhere, including waters teeming with mercury, DDT, PCBs, and other toxins.

I'm just glad I learned to stay away from fish—and thermometers—so Mensa won't come and take away my membership card.

Written by Jeff Mackey