The building I used to work at had a SD right over our desks. It would go off (tests) often, so I took my knife and unwired it.


A few weeks later the construction guys come in, look at it and start to get all giddy and begin back slapping each other.

I knew the guy and asked him why all the commotion..

He explained that they were tracking a light on the SD board-seems like they are wired in sequence and when a BREAK IN THE CIRCUIT happens, a light goes on on the board and they have to track it down and fix it.

I admitted to him that I had undone the wire and he laughed about it and warned me about doing any more McGuyver stunts.

Now I only work on them when they are the battery operated modules.

(I did do a wiring job in another office that ran afoul of the IBEW union another time.....but that is another story?)