In case you missed the news, a bizarre new drug, krokodil, has reportedly made its way to the United States. Originating in Russia, krokodil — manufactured with a combination of gasoline, lighter fluid and codeine — is a cheaper, more potent alternative to heroin. One catch: those who use this toxic blend of chemicals will experience their skin literally rotting off, like a real-life episode of The Walking Dead. So what would possess anyone to use such a dangerous drug? As the following drugs show, those searching for a chemical high will sometimes go to absurd, even dangerous, lengths to get there.