The "lodge goat" has long been a humourous, or depricating, symbol for masonic initiation in both anti-masonic attacks and in fictional burlesques. Whether or not Goldberg intended a reference to Freemasonry or simply to fraternities in general is impossible to determine, although it is unfortunate that he incorporated the pointed cowl of the then recently revived Ku Klux Klan.
Like the fezwhich was not only worn by Shriners but by members of the Elks and the Order of Moose, and anyone attempting to imitate the playboy image of Egyptian King Farouk I (1920 - 1965)the pointed cowl was not only worn by klan members but by members of any number of Mardi Gras fraternities as well as secular and religious groups.
Undated cartoon, circa 1930, "Sending a Late Stayer Home", The Inventions of Professor Lucifer Gorgonzola Butts. Reuben Lucius "Rube" Goldberg (1883/07/04 - 1970/12/07). Also reprinted in The Best of Rube Goldberg compiled by Charles Keller. Englewood Cliffs, New Jersey : Prentice-Hall Inc., 1979. pp. 88-89. Further information is available at www.rubegoldberg.com.