Final answer:
In comedy, the rule "Keisters are Always Funny" means that comedy often involves humorous physical actions and situations.
Step-by-step explanation:
In comedy, the rule "Keisters are Always Funny" means that comedy often involves humorous physical actions and situations. It emphasizes the idea that funny actions, like slipping on a banana peel or falling down, can generate laughter and entertainment for the audience. This rule highlights the importance of physical comedy in creating humor in comedic works.