I can bend the last joint of my right hand middle finger independently. Not any of the other ones though. I found out when I was playing Double Dragon in the arcade and smashing the attack button. My finger when stuff with the first joint bent and still smashing the kick button. I didn’t know what it was.
I can bend the last joint in my fingers independently. I also have a small nub on the tip of my tongue, which is only useful in one situation.
I can bend the last joint of my right hand middle finger independently. Not any of the other ones though. I found out when I was playing Double Dragon in the arcade and smashing the attack button. My finger when stuff with the first joint bent and still smashing the kick button. I didn’t know what it was.