Yes I am sure that approach will work for a lazy person. It is right and proper that you get paid less because you are so lazy. In fact, you have a flaming cheek expecting to be paid at all when you are so lazy. It's certainly no wonder that the contract teachers YOU come into contact with think that you are overpaid. You clearly are. I have been supply teaching for......errrm.....too long probably, but have never heard it suggested that I am overpaid. All slightly tongue in cheek, but saying people have a flaming cheek to expect their quoted rate of pay......well, what a stupid thing to say.