It is illegal to keep a horse in a bathtub.

The Law Explained

As Columbia rapidly urbanized in the late 19th and early 20th centuries, some residents tried to keep livestock in their increasingly cramped indoor spaces. Supposedly, a few citizens utilized large clawfoot tubs as makeshift troughs or sleeping pens for small equines. The city drafted a hyper-specific sanitation ordinance to put an end to indoor barnyards.