Donuts

Donuts, Donuts (Proud to win Cramp!)

If ten children share two donuts, each child
Gets one-fifth of one donut, which is
Hardly anything to bite on.
It simply tantalizes -
then leaves the child bereft.
But playground rules state
"All share with all."
Need a taste
at least
right?

Form: Countdown
10 lines, 10 syllables in the first line, counting down to 1 syllable in the last line.
Prompt: Title 'Donuts'.