I have done supply on and off for 3 years. Last month I registered with an agency and got 2 days of work. Yesterday morning I was hoping the phone didn't ring and it did. Got sent to a "Good" school, was the worst mainstream I'd ever stepped foot in. Disrespectful teenagers, complete refusal to do any work. FIVE students walked out 10 minutes before the bell, no support from SLT or other teachers. Anyway. I've had enough. I have minimal, when any power at all in schools when I am a supply. I did not do 3 years of uni for this. However, it seems that the experiences I have had on supply aren't as bad as some other people's and I am grateful for that. Tomorrow I have a job interview for a FE teaching position. Time to get the ball rolling so that I don't have to go back to this again!