Power Off Warning

One problem I've been having is that I wear my Omi on my wrist, but I frequently rest my arm on things (legs, chest, desk, etc). No matter how I position my Omi, it somehow finds a way to get pressed a shut off. I don't realize until I feel it vibrate.

Could we possibly have an option to give a power-off warning, like a double-vibrate, so that I know to lift my arm before it shuts off?