You go to a school. They think they're getting someone with experience. You have none. Things go awry and before you know it, your first lesson is taken over by a teenage girl shouting "fucking dickheads" at no one and any one. That sets the tone for the rest of the day.
Now I'm blissfully merry and not so concious that at noon today I was sitting alone in a staff room, in the science block, crying into a tangerine.... (no one had shown me where the canteen was)