A kitten
A cat that’s still learning how to be a ninja. It’s got the moves, but it still trips over its own tail.
My kitten tried to sneak up on me, but it tripped over its own tail like it was a beginner at stealth.
That cat is like a ninja, but it still runs into walls like it’s not paying attention.
My cat tried to sneak into my room like it was a secret mission, but it tripped over its own feet.