I don't know too much about wiring and such, but I can get my self into trouble. At the church I go to there is a set of chandeliers (4) in the sanctuary. Each one of them has two sets of lights in them. There are two breakers, one controlling one set, the other controlling the other set. There are no switch's we use the breakers to turn them on and off. The problem I see is that one night I went to turn them off, and the one set of lights wouldn't turn off. I thought the problem was the beaker. After looking at the labeling on the door of the box, it says that breaker (5) also turns them off. When I flipped the beaker, they turned off. The breaker that we use normally is not 5; I think its 4, but the labeling saying what it does is blocking the number.
Now to try and wrap this up, I don't understand and don't know how safe it is to have two breakers go to the same place and turn on and off the same lights.