Dreams like yours can reflect a mixture of emotions and situations from your waking life. Here are some possible interpretations:

1. High School Production: Being in a play often symbolizes a role you are playing in your life or a situation that feels scripted. The Wizard of Oz could suggest a journey of self-discovery or a desire to find your own path, similar to the characters in the story.
2. Flooding Stage: Floods in dreams often represent overwhelming emotions or situations that feel out of control. Cleaning up the stage might indicate your efforts to regain control or manage chaos in your life.
3. Kittens: Kittens can symbolize new beginnings, innocence, or something you cherish. The specific kitten you chose could represent a project, idea, or relationship you're nurturing.
4. Otis the Puppy: The puppy may represent a playful yet potentially destructive force in your life. The conflict between the kitten and the puppy could symbolize a fear of vulnerability or the challenges you face in protecting something precious to you.
5. The Conflict: The struggle between the kitten and Otis might highlight your anxieties regarding new responsibilities or relationships. It suggests a fear of harm or failure, perhaps indicating a situation where you feel unable to protect something you care about.

Overall, this dream may be inviting you to reflect on a current situation where you feel overwhelmed or concerned about protecting your interests or loved ones. It could also suggest a need to find balance between nurturing new beginnings and dealing with potential threats or challenges in your life. Consider how these themes resonate with your current experiences.