Equipment failures when you're on a deadline. I have been making and studying art all my life in both formal and informal settings. Through the years I have continued to take classes in order to keep up with new technologies, and I have always enjoyed the process of learning to work with new media. The Graphic Designer position was listed so I sent along a letter and the URL for my online portfolio to the Human Resources Department. But in looking back rather than forward it all seems quite likely.
Communication skills are paramount in any job.
If you can't convey your ideas to others, and are not adept at understanding what others are trying to communicate you're going to have a very difficult time carrying out the duties of your position. This is especially true in graphic design where it's your job to translate into a tangible product what others have in their heads. Helping to further the museum's mission of fostering public appreciation, knowledge and wise stewardship of the Sonoran Desert region. Knowing how to effectively work with a variety of people with a range of work styles. Stay in school and volunteer or intern at a museum.