I work part time at my school. I just asked to change my schedule at work because it was affecting my school stuff, and my boss kinda freaked out. He is the type that takes things very personally and was extremely offended when I requested to change my schedule. I have been a very good employee, having published several academic papers on the school's website through my job. He also just recently wrote an 8 page work profile about how good of an employee I am, and I have the physical copy of it. I know that realistically, changing my schedule isn't a big deal (at least not enough to justify him giving one of his best employees a bad recommendation), but I'm worried that this might hurt me in the future. I know he won't let this go, and I'm worried that if a future job calls him, that he is going to put in a bad word. I am currently looking to work in either engineering or academia after I finish school.