This is not a riddle.

This particular cat likes to put on its father's watch, in order to look like more of a grownup.

When one seems like a grownup, the world expects less of even less of the cat.

But cats are stupid. Quick, but stupid.

They are bound to forget which accessories they have equipped. In this case, the cat forgets its past actions and views itself as a time bomb.

But the plant cannot help, as it will not bring itself to cut the green wire.

So the cat chews its leaves until exploding.

There's a lesson here, I think.