Well, also the "delayed" notice at the gate of an airport makes noise.
It's informative: you might not be able to do anything about it, but you should know it anyway.
It's informative: you might not be able to do anything about it, but you should know it anyway.
If the same thing happens in my local lan I don't want the same warning, because if I get the same warning I will start to ignore it, and not only when I'm in my local lan.