I'm supposedly a supply teacher.
Work has been a bit shit so far and I have had the grand total of one day teaching 
The rest has been made up of cover supervisor work or TA work, for £50-£60 a day.
Increasingly, I am getting phone calls asking me to do just do a morning, or a few hours which inevitably straddle across lunch which I don't get paid for.
Is it unreasonable to just stop ? It's a complete pain and I make no money from it. Or is there a better way I haven't thought of?