Before anyone tells me to sign up for the PTA myself if I think I can do a better job, I have done 
Last night was DS's school disco. Started at 6.30, until 7.30 so one hour. The teachers spent the first ten minutes talking over the microphone telling the kids what they could/couldn't do so that took up until 6.40.
Then, the bit I am extremely
about is the music that the DJ played for reception kids. His repertoire included that fuckawful Sexy and I Know It song and other things not really suited to entertaining 5 year olds.
Then the lights came on at 7.20 to get them out so that Years 1 and 2 could get in!