I just quit my bar job

mid start of shift and I was the only barback on shift so the evil manager is going to have to barback tonight. I'd feel bad for pulling that shit but they've only ever treated me like complete shit, and edged me on for months about bartender training me so I'm free from that fucking hell hole. All my other jobs I've always ended on good terms and I never thought I'd quit a a job mid shift but I just couldn't do it anymore