Funny true story: My friend bought a fancy new stove. After owning it a couple of weeks his wife commented that the oven didn't work on Thursdays. Odd. So he in

Funny true story: My friend bought a fancy new stove. After owning it a couple of weeks his wife commented that the oven didn't work on Thursdays. Odd. So he investigated... and he found that indeed on Thursdays, if he tried to turn the oven on, it reported an error code 5A66. After a bit of searching in the user's manual, he discovered (a) that the stove had a Sabboth mode (b) the "error code" was actually SAbb rendered on the 7 segment display, and (c) he had not set the day of the week on the stove so it thought Thursday was the Sabboth. He turned off Sabboth mode and was happy. His wife less so because she no longer had a reason to go out for supper every Thursday.