Am I a bitch?

I was racked with guilt for most of today's shift. I waas mean. Sometimes you just have to be, when your workers are slacking and shit just isn't getting done. That's how it was this morning. I tried to be the good person, I really did. But these bitches threw it back in my face and made me suffer for my attempts at kindness. Hannah, who no one can stand, surprised me in the wee hours of the morn' by walking in to work (she was covering forit another girl on the shift). Since I know that no one can stand her, I did the nice thing by working side by side with her all day and putting the other two girls together. Thing is, the other two are friends, and friends tend to slow each other down at work, with all their giggling and gossiping and shit. I kept turning around to see what kind of shape Cafe Nasty was in while they were in charge of keping it clean (that's right, we don't have janitors- we do everything ourselves) and it was just a horrendous sight time after time. I got snappy. I couldn't help it! You should have seen. The garbage can was literally overflowing- to the point where they would put an empty milk container in and it would roll off the top of the dirty mound onto the floor. The nerve! So I definitely got huffy and bitchy. But then I felt really bad and apologized after the shift. They said they didn't notice me being mean and not to worry, but they were lying I know it.
Moral of the story is to not have two good friends working close together if you're in charge, b/c they won't do shit and then you'll have to yell at them and feel bad.