driske,
the sheer precision of your thought is so appreaciated.
Believe it or not, the drum-thing actually had important side to it.
I have found that in "coaching" children athletics - intended as stimulating motivation, making it challenging and fun while not being authoritative or worse despotic, generating genuine self-interest - requires a fair amount of what i would describe as "letting go."
There is a level of improvizational behaviour, to be lived at the children's level, which turns out to be extremely useful. What I am trying to say: you don't need to be a clown, but you need to seriously let loose.
And letting loose, like all things, can benefit from a little more-or-less impromptu practice. It is easy to be kid-like in front of kids. It is quite unbearable, most of the time, to be kid-like, sorrounded by competitive peers.
And speaking of letting go, this is an image that often pops up: running, contracted, straining, like with a thick, existential rubber-band tied to your back, which strains and creaks as it gradually stops lengthening, getting taut-er and taut-er... then suddenly snapping, like a wild whip, causing you to run faster than fast, trying to avoid it crushing you in the back...
happy running.