You also can't know when someone between you and the other endpoint has configured something stupidly. :) As a sysadmin, I do my best to make the network as da

You also can't know when someone between you and the other endpoint has configured something stupidly. :) As a sysadmin, I do my best to make the network as damn near perfect as possible; but as a developer, I still generally assume the network is unreliable and plan accordingly.