I've done that...After getting the run-around in customer-service hell, I ended up snapping at one poor representative. I immediately apologized: "I'm sorry, I don't mean to take it out on you. I'm super frustrated, but I know it's not your fault. If you could help me out, I would really really appreciate it."Having been Karened myself, I had to apologize for going Karen on pharmacy staff. To be fair, they did kinda screw up, but I was a bit grouchier than necessary.