We were driving in my friend's new car. I asked him about its features.

He listed the usual, then added,
  • "It tells me to slow down as I approach the speed limit.
  • It warns me when I have to stop.
  • It points out solid no-passing lines."



I expressed my amazement.

"But," he explained,


"these features only work when SWMBO is in the car."



----------- Today's saying or thought -------------------------

How do you tell when you run out of invisible ink?