Doofenshmirtz's backstory i made up

You see, Perry the Platypus, when I was a young boy back in Druelselstein, I saw an Irish dancing show and I fell in love with it. A few months later, there were auditions for a Junior Druelselsteinian Irish Dancing Team. I learned I had a great talent for it, yet, neither of my parents let me audition. The team went on traveling across Gimmelshtump getting $1 a show. Today that would be about $100. They did about 5 shows a month, equalling $6000 a year! After that my parents took us to a bunch of their shows, but when we went there, they were mocking me. I grew less and less satisfied with Irish dancing every time.

This will be in one of my future fanfics