Basically, computers are dumb animals, and need to be told exactly what
to do and in what order, or else they get confused and don't do things
the way you expect.
well, to be a little more precise: when an outlet is connected to multiple inlets, the order in which messages from the outlet are delivered to the receiving inlets is not determined by their on-screen position. (I think it's determined by the order in which you originally connected them)
cheers,