This happened about 6 months ago when I still worked in the call centre. I worked for a large energy company and this call came through. I answered with the usual
M: Hi you’re through to ____
C: Put a manager on the phone RIGHT NOW!
M: Sorry what would the problem be?
C: I’ve never had a problem with the Irish, but you Irish people have been so exceedingly rude to me because I’m English. You think you can talk to me however you want. The last two Irish people I spoke too were incredibly rude. And I can already tell that you don’t reeeeally want to help me, so save me the hassle and put a manager on now. Unless you really really want to actually help me.
M: I’m so sorry they were rude to you, of course I’ll help you. (Got her account number and passed security with her and she started complaining saying the amount we were charging her was ridiculous and she wanted me to calculate her usage manually based on the meter reads she had just taken, so I calculated them and told her how much it came to)
C: THAT IS WRONG! TRY AGAIN!
M: Okay (calculates again and gets same result)
C: STOP LYING TO ME! I KNOW YOU ARE LYING TO ME!
M: I’m not lying to you.
C: YES YOU ARE! YOU’RE COVERING UP FOR THE OTHER PEOPLE I’VE SPOKEN TO! I’VE READ ABOUT CALL CENTRE PEOPLE COVERING UP FOR EACH OTHER IT’S A RING OF CONSPIRACY! IF YOU WANT TO BE A SMART GIRL THEN TELL ME THE TRUTH! I AM WRITING A LETTER AND IF YOU DO NOT TELL ME THE TRUTH I WILL GET YOU FIRED. WHAT IS YOUR EMPLOYEE ID???
M: (told her my ID)
C: What’s your manager’s name?
C: And where is he?
M: Oh he’s away home (said with a smirk) and our managers here can’t actually talk on the phone.
C: I DON’T BELIEVE YOU!!! YOU ARE LYING!!! GET ME A MANAGER ON YOUR FLOOR RIGHT NOW AND DON’T YOU DARE EVEN THINK ABOUT PUTTING ME ON HOLD OR I WILL HAVE YOU FIRED!
She was ranting for so long I just muted my headset and had time to even put the headset up to the guy next to me’s head so he could hear her, and she didn’t even know I was gone. She started taking about fraud and about suing us. At this point I had enough and hung up the call. Wrote down in the call notes about how rude she was and said she hung up on me. There was a lot more in the call that I can’t even remember now but it did last about 20 minutes in total. Just one of many batshit crazy calls I got.