The idea of the transgressive came up in one of our university colloquia. The next day in a Studio Interlude, we were making greens. Someone asked, "How do I know how much yellow I need with the blue to make this green?"
Answer: Keep adding yellow until you pass the green you want. Then go back by adding a little more blue.
"Ah"! said several people, "transgressing!"
... theoretical concepts experienced with paint ...