Getting around corridors between lessons is always hard work as a hundred teenagers trying to get through one set of double doors causes something of a crowd-flow problem. It's even more so when year ten are coming because I seem to know just about everyone in that year, which is good in some ways, but there are some pupils you'd rather just avoid.

It does mean I get a mass of hands waving at me with cheerful hellos from pupils who do like me, or ironic thumbs ups from pupils who don't. I'm left to send out a flurry of 'hey, you alright Paul?', 'Long time no see Fred,' 'Nice hat Polly' (technically she shouldn't have been wearing it inside, but it was a nice hat) and 'no you can't style my hair again.'

My level of sincerity varies massively, but then so does that of the kids. I always appreciate the attention though.