VERY true!! Especially when something goes wrong where we are unable to fix, or fix as fast as the user wants us to. They complain to their boss so they don't get in trouble for "not working" and blame IT for their incompetency. It's a battle we all have fought. A good manager can nip most of it in the bud, a poor manager makes the issue even worse by relaying it to the affected worker.
In our hearts we all want to help. We like working on something that we love. Once in a while, it just doesn't work out. I always hated when it doesn't.