Today as I was sweeping my shop (it could happen) I saw a black snake slithering away from me in the sawdust. I jumped back pretty good.

In deference to the gentle folk among us I will only include a picture of a snake I found in a maple tree once.
Things that frighten dogs: autonomous lawn mowers. Seriously, we were out walking and encountered one - the dogs reacted with fear, amazement and much barking. They had never seen anything like it - it was rolling along, making noise, no humans nearby. '
So there you have it - robots can take over even the most menial of tasks.
WRT my previous post:
I agree with CL that Dr. John's singing is rough, but his piano playing is smooth.