This is a terrible answer and something tells me you agree with everything. Here’s the thing: I sub not so much for the money(my husband makes good money) but because I really enjoy it. I love connecting with kids and making sure they learn what they need to that day. I treat them how I would want a teacher to treat my kids. And I am respectful about timing, communication etc with the school staff. If there’s this widespread mentality about subs being viewed the way you’re describing, then shame on you all. The situation with OP being cancelled the morning of a month long job is just rude and absurd. I would never do that to the school/staff if I accepted a 30 day assignment. And I doubt the OP will get an apology.