For my current job, which is a construction job, one of the biggest challenges was working at heights when doing the installation of the building roof. And I have worked in heights before, more than a few times, but you get used to a certain kind of safety equipment. And this job, it was very safe, but they had a different kind of harness setup that I wasn't used to, so there was just a start-out period where you had to get used to the new equipment. And the first couple times I had to go out onto the roof, I was more than a little nervous and almost wasn't able to bring myself to do it, but I just made myself focus on what's the next step in the task and what's the next thing I have to get done, just get one foot out there, put the next foot in front of it, and so on.