A "goat gland specialist" was a quack who purported to treat erectile dysfunction with goat glands.
In the scene where Buster lights his cigarette from the lit fuse of the anarchist's bomb he is, knowingly or not, mirroring the darkest day in Harold Lloyd's life. On 24 August 1919, Harold Lloyd was posing for gag photographs at the Witzel Studios. He thought it would be funny to light a cigarette from the fuse of a prop anarchist's bomb. When the bomb proved to be real, he lost his right thumb, index finger, and 30% of his palm. In addition, he was completely blind for 3 months and half blind for an additional three.
This film was selected to the National Film Registry, Library of Congress, in 1997.