The Last Bastion of Free Speech

On the fourth floor of the Marriott Library on the University of Utah's main campus in Salt Lake City is a men's restroom that had tile walls. Those tiles were the small, old-fashioned style, probably an inch long and about three quarters of an inch high.
Between each of these tiles, in the grout, many people put their poetry prowess to work - all with the word "grout", which made the medium all that much more interesting.
The phrases were as varied as the authors, but mostly familiar - the only difference being the integration of the word "grout".
They were such as "The Grout Wall of China", "The Grout Gatsby", "Oscar the Groutch", "Down and Grout on his luck"... you get the picture.
The walls were effectively covered with these phrases. Some infinitely more clever than others. The walls remained like that for many years. And, while I normally frown on bathroom wall-writing, this particular variety was less than typical... and I liked it for its originality, as opposed to banality typical of wall-writings.
The last time I visited that men's room, however, the forces that be had washed it all away. Only the deepest embedded remnants were visible as phantom writings.
It was sad, really. As campus speech codes have become more ubiquitous, this seemed like the last bastion of truly free speech.
Now the library is undergoing a major renovation, including the fourth floor, where this bathroom resided. I shudder to think of how sterile the new bathroom walls will look.