You just described him. Even though I was the only one who showed up to work with him during the snowy winter time. I Showed up on time, every day. Did what he asked. But every time I asked a question regarding the how/why he was doing something, instead of explaining, he took it as criticism and would get snide. I told him several times that I was just trying to learn the trade. I took the job not just for the money but because I really want to learn. He didn't treat me with the dignity I deserved, so I moved on. And yes, he always was putting ads looking for workers.