In the medical world, there’s no shortage of weird, creepy diseases. One of the most misunderstood conditions is a disease by the name of Ehlers-Danlos Syndrome, or simply EDS. EDS is a connective tissue disorder that’s passed down genetically.

Those suffering from EDS experience a wide variety of symptoms, and they often go misdiagnosed for years. Some also experience hyperflexibility, meaning that they can easily bend and dislocate their joints. This makes it possible for them to escape from sticky situations…like being cuffed by the police.

My joints hurt just watching this.

(source: Taryn Eason)

While it’s a great trick for parties, those with EDS who continually abuse their joints can expect to suffer serious long-term consequences. Don’t try this at home.