Black dog and the slide. (the flying springboard)

He stands at the bottom,
Head cocked in concentration,
Listening to his small master's voice.
"Black, tsk tsk tsk, black, um ear."
He doesn't understand how, or why.
With a mighty effort the black and white body
Scrambles up and reaches the top.
"Goog Boy. Goog Black goggy."
Is the best sound a puppy can hear.
Now standing at the top he watches in concern
As his friend goes down the slide.
Not one to miss out on the fun he tries it himself.
And realizes if he doesn't jump he'll knock over the boy and be a bad goggy.
With an even mightier effort than before,
He gets his feet under himself and performs a marvelous last minute leap.
He stands at the bottom of the slide, smiling as only a goog boy can, and receives his loves.