I did, today for the first time in 4 years of supplying. I was told it was a year 2 class, got there and it was year 6 post SATS, leaving school next week and not giving a s**t about anything or anyone.
They were running around the class, fighting, arguing, refusing to sit down and work and just being horrible. Every strategy i have used in 15 years of good teaching was ignored. Little or no support from SLT.
I went to the Head at lunchtime and said i was leaving and i walked out! Still can't believe i did it but could not have managed a 2.5 hour afternoon with them.
Anyone else ever done this?!