A dozen bulletin boards lined the hallways of the basement of the School of the Museum of Fine Arts. All but one of the boards was one of the primary colors of pigment, red, blue, and yellow. The lone standout was purple. There was a space at the end of the hallway for one more billboard, a space that was conspicuously empty as the rest of wall space was in use.
I constructed a new board, using the exact materials and methods as the other boards, and installed it. Within days it came to be used like all the other billboards. Eventually it was painted red.