This morning we have a network outage at work, and none of the computers in this room can talk to the network.
Except, for some undoubtedly bizarre reason, mine, which is perfectly all right.
I fear I'm not going to get to stay sitting at it for very long; one colleague has already tried to kick me off so he could check an ‘urgent’ email, and I strongly suspect others will be doing similar sorts of things soon enough.
(Mind you, this kind of makes up for yesterday. Yesterday we had a three-second power cut and all the machines rebooted; everyone else's was fine after it came back up, but mine stopped talking to its trackball for several hours. Karma is very quick these days.)