Yesterday, I did a walk around the mall, using the "inside walk" activity. After about 38 minutes, the watch showed about 18 minutes of actual exercise, and I figured that was due to the fact that my heart rate wasn't up into the "brisk walk" area. However, after coming home, and sitting at the computer, and doing normal things, like getting the mail, watching a little TV, etc about an hour later, the watch goes "You've completed your exercise ring", and there was the full 38 minutes of exercise. Anyone else seen this?