I provide tech support for a certain number of computer resources at a large organization. Another department - literally another department, they're not part of the same branch of the organization at all, and are located a good mile away from where I sit during the day - provides support for a group of computer resources which is connected with the part I support, but is separate. I have no access to the system, and my only experience with it was with the old version we used four years ago when I was an end user rather than being on the support end. I have no way of providing any kind of support for the service. Quite frequently, we get callers who insist that I can, in fact, help them, and should help them, or at least transfer them to someone special who can help them, when all I can actually do is transfer them to the correct support department.
Today was extremely frustrating for everyone involved - a system partially collapsed under the strain of suddenly supporting 100000 simultaneous log-ins (someone had the bright idea of uniting the sign-on process for my department's system and the previously mentioned department's systems, which is much more convenient for the users, but introduced a massive load problem on the servers today when it all kicked in.) The sysadmins spent their day performing an emergency doubling of the number of servers handling the requests - I spent my day telling people that yes, the system was down, and no, I didn't know when it would be back up other than "soon," and that the only suggestion I had for them was to try the system again later, and that their "supervisors" should be understanding of the issue because they were also affected by it.