According to this blog, https://michaelperelman.wordpress.com/2010/01/24/1445/ James O'Connor has an interesting thought here: Consider the labor of the ticket seller at a movie house. The seller’s task is merely to transfer the right to sit in the theater to the movie-goer in exchange for the price of a ticket. But it may not be immediately obvious that it is not the lack of a ticket that keeps you out of the theater … The ticket is actually torn up and discarded by a husky young man who stands between the box office and the seat that I want. These guards are a central feature of capitalism. Capitalists depend upon guard labor to protect their commodities, including the goods and premises they own, but especially the labor-power in their employ. Capitalism’s reliance on guard labor deforms the entire productive process, not only wasting labor, but also snuffing out badly needed creativity.