On our recent trip to Daytona, and our daughter's home in Georgia, we stopped at a rest area to use the facilities.
I walked into the men's room, and staring me in the face as I walked up to the urinal was a sign. This was not graffiti as there was a brass plate over each urinal that read, "This is a hands free operation urinal".
So, I walked up to it and stood there waiting to see how it would work. Shortly thereafter, a fellow walked up to the urinal next to me, saw the sign and started laughing.
I looked at him and said, don't ask me. It must be broken. I've been standing here for a couple of minutes and nothing has happened yet.