A challenging client that I've worked with and how do I handle those situations, I had a customer call in when I was working with Amazon regarding a package that they received broken. I assured, I apologized to the customer and I assured them that I'll get them a new package out the next day because he needed it for his child's birthday in like two days. So I was able to get the package out, prioritized and it was delivered in time for his child's birthday and he was able to return the other broken package at his earliest convenience. So he was happy.