Dear anonymous,
It's unfortunate what our work relationship has become. Initially, we were great friends: we joked; we laughed; we played. You helped me with my Spanish and never made me feel like I'm an idiot when I said things incorrectly. We would joke-fight when we were assigned adjacent registers. You liked to take advantage of my thorough concentration to creep up behind me and scare me senseless. I much enjoyed squirting you with Windex from a til or two over. I don't know what has happened to you recently; apparently it wasn't me, but the fault of another employee that your attitude has abruptly changed towards everyone. I'm now told that you were always this way, but I never saw it; was your personality before but a facade, then?
I now despise the idea of working the same shifts as you because of how your disrespect and unwarranted impoliteness has affected our work relationship. We no longer look each other in the eye nor do we consider passing by one another's til. It's sad that you took your anger - irrelevant to me - and decided I would be a nice scapegoat. Yes, I understand you have been working here for six years and I've only been here six months, but you're not my supervisor, so you have no right to treat me as an inferior or give me orders, or even tell me that what I'm doing is wrong. If I am doing something I shouldn't be, the shift supervisor will tell me so herself; not you, who was transferred from another department (at the same time I was employed in the company) for purposefully wrongly weighing meat in order to get ridiculously cheap prices on chicken and beef. Yes, I heard about it, and shame on you.
And shame on you even more now that you've taken it upon yourself to "put me in my place" when the supervisor has advised you that everything I have done since Tuesday has been entirely correct. Need I remind you that I have technically been a cashier longer than you have? We are a union, but Years of Service does not apply if we are workers of the same rank; in this case, we are both Bronze Cashiers, with me having the upper-hand due to being trained on Courtesy (unlike you) and having prior cash-related, retail experience. I do not approve of your scapegoating me for your anger towards someone else. It is immature and unprofessional on your behalf, and I swear that the next time you try and tell me what to do or make a comment out-of-line, or simply that you do not mind your own business, I will have a nice, calm talk with the Service Manager about your lack of respect towards me and those around you.
I know you can't read this. Even if you could, you wouldn't. And that's OK, because I'll end up telling you face-to-face if you push my buttons on Saturday.