Grandpa Munster gave Eddie a magic potion that inadvertently caused him to grow a beard. While eating dinner, the Munsters find out that Eddie's beard dissolves in water. Herman takes the opportunity to instill a valuable lesson in Eddie: it doesn't matter what he looks like, but what really matters is "the size of [his] heart, and the strength of [his] character." This clip suggests that we should not judge others by how they look but by their inner qualities and how they treat others.