The horseshoe in the locker room
I notices the similar setup for the box fight in Chaplin's The Champion (1915) in which Chaplin also volunteers for a box fight to raise money. It also has a horseshoe scene but in The Champion he actually sneaks it into his right glove (see https://youtu.be/19u6KR16kek?t=6m8s).
In City Lights he dismisses the horseshoe after some consideration. Any idea why Chaplin (as the writer) would set up the possibility of a "horseshoe fight" but then would not go for it?