Who is the cashier here? You or me?

[BowserKoopa1]

Yesterday I had a lady try to use her card, and it got declined, so she starts telling me what I need to do in order for the card to work. SL= Stupid Lady
SL: You need to type in the card number.
Me: Oh don't worry, Maam, the card reader read the card.
SL: It didn't read it, that's why it didn't approve the transaction.
Me: MY register would tell me if it didn't read. Your card scanned just fine.
SL (in a smartass know it all tone): Trust me sweetie, you need to type it in.
Me: Your card got declined, Maam. That's what happened.
Next while all this is going on, she starts pestering me about making credit card payments at the register, something I don't know how to do since I've done it once in the year and a half I've been here.
Me: I'm sorry, I've only done that once in all the time I've been here and I don't know how. I can get my Sup to help me though.
SL: Just forget it.
Me: If I've done something wrong, I apologize.
SL: Your tone of voice just isn't correct.
TONE OF VOICE?! I'LL SHOW YOU A FUCKING TONE OF VOICE YOU STUPID BITCH!!! I fucking hate people who think I'm being rude just because things are not going their way. I had to apologize to her again just to make sure she wouldn't go and complain. She went to Customer Service and did complain about me not knowing how to do the credit card payments, but that's it. I forwarned 1 of my Sups about her, and he took care of it. Fucking cunt.
Ok all you idiot customers out there, listen up.... I am the cashier, you are not. I work here, you do not. I know how things work here, you do not. So please shut the fuck up and let me do my fucking job! You want to learn how things work here, feel free to apply for a job, and hopefully you won't be on the register next to me!

[XCashier]

SL: Your tone of voice just isn't correct.

And I'm sure hers was all sunshine and lollipops, right? Yes, of course you're going to get a bit terse. She's denser than lead and won't listen to your instructions, because what do you know, you only work there.

You want to learn how things work here, feel free to apply for a job

They'd be lucky to last for half a shift, having to deal with the crap they normally foist upon others.

[rose_metal_nz]

Yesterday I had a lady try to use her card, and it got declined, so she starts telling me what I need to do in order for the card to work. SL= Stupid Lady
SL: You need to type in the card number.
Me: Oh don't worry, Maam, the card reader read the card.
SL: It didn't read it, that's why it didn't approve the transaction.
Me: MY register would tell me if it didn't read. Your card scanned just fine.
SL (in a smartass know it all tone): Trust me sweetie, you need to type it in.

How about THAT tone of voice?! Arggghhh I can hear it in my head & it brings on all sorts of rage! Sorry you had to put up with that