False Alarm
I am the Email Insider Summit, held at a posh hotel in Utah.
Entering my suite's bathroom, I noticed a red dot staring at me from the mirror on the wall:
Not losing any time, I rapidly ducked down and swiveled back to locate the sniper aiming at me.
There was no sniper.
Turns out there's a TV embedded inside the bathroom's mirror; the red dot signals that the TV is currently off. Here's how it looks like, once you turn it on:
Bottom line: (fortunately) my life is not an action movie.