Like other dos and don’ts from the Middle Ages, medieval pet advice hasn’t exactly withstood the test of time. A diet of dirty, soggy bread, for example, isn’t a good way to keep your dog puppy-sized forever. And applying a mixture of salt, honey, and onion to a monkey bite sounds more like an invitation for a second monkey bite than a cure for the first one. On this episode of The List Show, Mental Floss editor-in-chief Erin McCarthy is delving into dozens of strange recommendations from purported pet experts of the era. Hear other entertaining tidbits below, and subscribe to the Mental Floss YouTube channel for more fascinating videos.