Most of us have experienced cracking our joints, whether it's on purpose or by accident.
Some believe that constantly cracking your knuckles can cause arthritis, while others think it only causes swelling. Whatever it may be, it can't be worse than what a 31-year-old man experienced when he "absent-mindedly" cracked his knuckles at work one day.
Not only did he almost lose his hand, he nearly lost his life.
Antoine Boylston, a service technician from Kentucky, had to undergo several operations, one that involved amputating his little finger.
By the end of it all he had only two functioning fingers on his right hand, but he's glad that he didn't lose his life.
"Doctors warned I may lose my hand but if I had waited much longer I could've lost the entire arm or died," he said.
It wasn't just the act of cracking his knuckles that changed Boylston's life dramatically, it was the result of a scab wound on his hand opening, which later became infected with flesh-eating bacteria.
"I had only heard of flesh-eating viruses from movies. I didn't think that was a thing people could actually get," he said.
We warn you, the following photos are graphic.