So, as per this question, talking about my last job, I'll be referring to Morgan Stanley, not my current job at UPS. I would say the most challenging situation I faced while at Morgan Stanley was dealing with inappropriate behavior by co-workers, or really this is more of like a superior not a co-worker, but when I was working with annuities and insurance, sometimes you would take calls from financial advisors that would be very disrespectful and hard to work with, and I think that's hard for anyone to deal with, but at the end of the day, we just kind of had to give them the same service we would give any other financial advisor or any other customer, and the only other thing I would do that was special in that situation would be to refer to my supervisors to kind of say, hey, I had a problem with this person, can we do something about that?