At one place we had a rather large office space, with air conditioning / heating being split with two controllers. There were two tiny problems: 1. The controllers were marked wrong.The one supposed to control the left half controlled the right and vice versa. 2. One controller was upside down. Instead of turning everything up it turned things down.
Somehow this didn't work. Before the problems were identified, they found a state that was close to reasonable, and warnings of instant death sentence if you touched the controllers.
Biting the hand that feeds IT
