This is how I learned as a kid (I'm 23) and I have to say my discovery of GNU/Linux and Free and Libre Open Source Software has may have been the single most impactful event I can trace in my life.
I notice I accidently do similiar thing with parenedit. I can accidently move forms in and out of where they should be. Not an issue if the functions are small but with longer ones I might slurp off screen.