What's your worst experiences you've had while working?

My boss usually handled all phone calls, but had to go out for an hour once and asked me to pick up and just note the name and question so she could call back to handle it later. Of course one angry customer picked that time to call. He had booked a full vacation package, but the taxi that was supposed to pick him up at the airport didn't show up or something. Very understandable he was angry, but he called a taxi himself to solve the situation and already returned from his vacation in the meantime. He only wanted compensation for the extra costs and inconvenience afterwards, so there was no real hurry.

Long story short: I apologized for the inconvenience, explained I couldn't look into anything but was happy to note his details for someone to call him back within an hour to settle this and asked him to repeat his name. He went all ballistic like "I already mentioned that at the start of this call. You made a mistake and it is your responsibility to fix it. I'm not going to tell you my name again." I explained I couldn't promise a callback without that, but he kept refusing to repeat his name or give his phone number, order ID or anything.

So I made a note about what happened without whom it happened to. Thankfully my boss recognized the temper from my story, found his details and managed to make an offer that satisfied him. 😅