1. The backstabbing whingers. Those people that notice a fault in your work and tell your line manger rather than directly to your face. 2. Slow IT systems. Which invariably cause that starter video when you are being observed to buffer. 3. Jamming photocopiers. Which always wait until the photocopying is 'urgent' before jamming. 4. Cup Nazis. Those members of staff who would actually literally kill you if you dare use THEIR mug for your tea/coffee! 5. Mr/Mrs Misery Guts. Those members of staff who are miserable even if it is a bright sunny day on the last day of the Summer Term. 6. The impenetrable clique. That group of old timers who have holidayed together for the last 26 years and you are as likely to be 'accepted' into them as Villa winning this years Premiership. 7. Mr Politically Incorrect. Because itsd 2016 and homophobia is not acceptable anymore, least of all in a school! 8. The year group from hell. All interventions have failed. Whether it is due to an above critical mass number of nasty children or something was in the water in the local area in 2002, the words '9Z5' are enough to cause palpitations for even experienced staff and three of their teachers are already on long term sick leave, probably with stress. 9. The data fail year group. Whether its Mrs W and Mr B from the feeder primary giving all the kids Level 5s in their teacher assessment or the fact that when these kids were in Key Stage 3 the school had 58% of its staff as supply, there is no way even with 24/7 intervention sessions between now and the exams these kids are going to make their targets and Ofsted are going to come in as a result! 10. The child from Hell. The school cannot permanently exclude them due to some deal with the neighbouring secondary, the parents are about as supportive as a rubber tube and due to some 'inclusion initiative' SLT are trialling, the child is allowed to attend lessons despite telling practically all his teachers to ___ off and having squirted little Johnny with 2 molar hydrochloric acid.