Virtual Knuckle Cracker

Some people cringe at the very thought of the sound made as people crack their knuckles. The sound produced from knuckle cracking is nothing more that gas escaping from the low pressure inside your joints, yet some frequency of the sound produced is enough to bring people to disgust.

This online simulator, aptly titled Crack My Knuckles, might help those with a knuckle cracking "addiction" keep a mindful eye of where and who they are cracking their knuckles in front of.

Link: Crack My Knuckles