Picture this, Keyzia attempting to leap onto the footstool...  Keyzia missing the footstool and falling dramatically on the floor.  Terrible horrible crying ensues...

Me:  Well, Keyz, why would you try and jump on the footstool??

Keyz (amongst wild sobbing): I didn't!

Me:  Yes you did, I saw you!

Keyz (more wild sobbing):  Well, I didn't see myself do it!

So, I guess doing silly nutty things is fine.  As long as you don't see yourself do it.