I know you'll appreciate this.
I just had a difficult call with someone who had a valid complaint, but it was off-set by the fact that he's totally annoying.
He was saying it took five calls and an e-mail for someone to really help him (that someone being me). He would not let.it.go even after I apologized and promised that we'd look into training opportunities and so on and so forth.
He asked where his 'calls were going'. I know he meant this rhetorically, but I was so annoyed with him that I said, "Your calls are gonig to x, y, z" (our call center locations). He was all, "I know that. I meant that I don't think people took my requests seriously."