Does your body have an involuntary talent that you find very impressive?

For example, I always thought it was awesome how I would never have to poop while I was out, but the second I entered my house, the urge hit me. It’s like my body was just waiting for the right time to let it out. Also, some people have the ability to tell themselves when they need to wake up and their body wakes up at exactly that time. Does your body do anything cool like this?