I once got a customer passed off to me by my manager since I'm a super patient person. She explained the situation, but not entirely, so when I thought I had resolved the issue for the customer. They'd would get their replacement reimbursement in 2 days. When I told him that he screamed at me and told me I'm incompetent. Apprantly the issue was that he wanted it the same day... I just walked away becuase if I stayed around I would have said some wild shit to him.

One of my favorites though were Ivy Leaguers who would always mention they went to an Ivy League school as a way of letting me know that they know more than me therefore whatever advice I was giving them was worthless then proceeding to act confused when they realized they didn't know what they were talking about.