Today I had to phone up the local education authority, as they had made a mistake on my last pay claim. The person who deals with the place where I work was on another line, so I left a message and waited for her to call back. An hour-and-a-half later I called her again. No matter how many times I told her the pay claim was already in, so there was no point in calling the school, she just didn't get it. I tried to ask her whether it was she or the payroll department who would have made the calculations, but she wasn't listening. I may have raised my voice slightly to try and get myself heard over her waffling, but I did NOT shout. She, however, accused me of shouting at her. I assured her I was not (I have a big, voice, for goodness' sake, I teach and I sing opera) but she insisted.
So I told her again that I wasn't shouting, then told her that I CAN shout.
I told her very loudly. In full operatic, fill-the-theatre-to-the-rafters volume.
*I then phoned payroll and spoke to a very nice woman who informed me that there was a mistake, she had made it, and I could come along and pick up the difference as soon as I could get there. I have now spent it :)*