Well, you could have a subtle haptic poke on your wrist. It's going to make you feel less stressed, like someone tapping your shoulder when you should really leave. It would work for me as I am always running late for meetings. Intelligent time - and not fitness - is the killing feature in the watch for me. I am surprised it is not very prominent in Apple's communication. It is a watch, right? Perhaps it is because of iCal that needs to be re-imagined?