hahaha today I talked to my grandparents about my Weird Joints bc I was pretty sure I got it from Grandpa's side and yes, yes I did

apparently in his youth he could also put his legs behind his head, reach up to his shoulder blades from behind his back, and dislocate his shoulders; and my tendency for fucked-up seated posture is also typical, as his family can be identified by 'whoever's sprawled across the most furniture in the weirdest and most uncomfortable-looking position'