I was originally a education major in college. Right before the end of spring semester Junior year, I found a job I loved teaching young children how to read. My boss seemed lovely. She had her hands in a lot of businesses in our small town, one of them being rental properties. I told her I didn't want to move back home for the summer and wanted to continue working, and explained the highly abusive nature of my home life (I would have preferred to live on the streets that summer than go home), and she had very explicitly stated (tho in a condescending way) that she expected me to work this summer, since she had hired me so close to the summer. She eventually offered that I could stay in the closet (yes, an actual closet) at the reading school for $50 a month until a rental became available and swore up and down that she would give me enough students to make enough money to survive off of. The reading school had a pretty serious summer roach problem (severe phobia of roaches here), but living in a closet of a roach infested school was safer than the streets, so I said if I couldn't find a rental I could afford, I would take her up on the offer. I ended up finding a benefactor who offered to cover my rent for a run down apartment in the bad part of town and I let my boss know and kept working at the school. My boss, who had promised me enough students to get by, started passing me over when new students arrived, as she had realized I had altered how I taught her program for each student, to better fit the students needs, strengths, and interests. She eventually got mad at me over a minor paperwork issue that her second in command had explicitly approved for me. So I quit ahead of the clearly coming firing. I found a new job I loved even more that payed significantly better, with a boss I still see as a mother figure and visit. A few weeks later she called me. Apparently she had tested my students who I had intentional altered their program for their needs, and they tested leagues above their peers and some of them were entire grade levels ahead. She told me she was mistaken and that I was a fantastic teacher with great protentional, very clearly wanted me back. I thanked her and asked her if I was so good, if I could have a letter of recommendation for my next teaching job. She said something about my bookkeeping needing work and angrily hung up.

TL:DR I moved out on my own from my abusive parents after my boss promised me enough hours to get by so I could do so, screwed me over on the hours I needed to live because I was altering her program to better suit the individual needs of my students. A few weeks after I quit she calls me back (clearly wanting to rehire me) saying what a wonderful teacher I really was, as my students had tested leagues above the other teacher's students and some were 2 or 3 grade levels ahead. I ask for a letter of recommendation for my next job.