@anandcoral: Maybe you forgot to turn on the brilliant LED flashing white and red lights that all husbands are obliged to wear on the tops of their heads (white light over the forehead, red on the back of the head).
For convenience, I have my lights affixed to my bicycle helmet, which I wear whenever I go out, day or night. I also have a GPS in the helmet, but my wife prefers to rely on the lights as they are less technical, and she finds it easier to look out the window of our 7th-floor apartment to see if I am travelling down the road.
Unfortunately, I absentmindedly had my helmet on back-to-front the other night. My wife couldn't tell whether I was coming or going.