Does anybody else notice that the Watch takes HR readings when it's not on your wrist but still moving? For example, I'm not allowed to wear a watch at work so I put it in my shorts pocket; at the end of the day I notice that it's been taking readings the entire time. They aren't crazy—usually between 70 and 100 bpm—but I cannot figure out why it's happening. Isn't the Watch supposed to be able to detect when it's on my wrist?