So, like I stated in one of my previous videos, challenges and problems will come no matter what we do or how much we try and avoid them. And the best thing that any of us can do is to just be prepared and well-equipped for those challenges. And I think that one of the greatest tools that anyone can have is, especially in a working environment, is good communication skills. Being not only a good communicator but a willing communicator, because those can be two completely different things. And using good communication, I mean, can prevent lots of problems from happening and help alleviate problems once they do arise. So I couldn't name a specific issue that I had at a job, but there's many every day. I mean, every day we're faced with challenges and, like I said, the best tool that we have to overcome, especially in a professional work environment, is communication.