I left work shortly after I started on Friday and I overheard my supervisor say “she shouldn’t have come in at all. Dumbass.” He hates his job so much he doesn’t care what he says or do. He’s very unprofessional. Should I tell a manager? I know at least one coworker who was there will back me up. At the same time I don’t want to create problems for myself, but his comment was really rude.