What I thought was funny:

This isn't some idiot political professor claiming that the shit should be free because it came from an enslaved cow acting through natural causes the tyrannical farmer did not contribute to.

The is an economics professor, who ought to realize that someone had to spend man-hours collecting the shit with a shovel, had to feed the cow, and had to protect it. Not to mention that the existence of a market in shit should be a hint that maybe it has value...

I would love to here how he explains this one to students and other faculty.