Black and white comic shows a scowling boss figure explaining how he makes life difficult for the janitors he employs. In the final frame, a heroic figure in a luchador costume (Mop Man) stands triumphantly on the word "UniĆ³n" which has crushed the boss.

Mopman fights the boss

A man with devilish features and dressed in a business suit explains how he makes life difficult for janitors. In the end, he is crushed by the word “union.” This cartoon is one of several featuring “Mopman,” a superhero janitor.