If Anyone Remembers The Old Story About How Male Prisoners Were Found To Be Calmed When Their Cells Were

If anyone remembers the old story about how male prisoners were found to be calmed when their cells were painted pink; (oft cited to prove that the color pink has a calming effect on men) apparently this research was replicated with other paint colors and it was found that any color of paint has the same effect, including painting the walls the same color that they were before. As it turns out, you have to clean in order to paint, and people are happier when their environment has been recently cleaned. The obvious takeway is that correlation does not equal causation, but the even MORE obvious takeaway is the many times proved but seldom acknowledged law that one should never attempt to extrapolate general principles out of studies done in a prison