Slappy- Stomach Kicks

They followed the alley to the end of the block. Hanging over Vinny’s shoulder, Slappy’s head bounced heavily against Vinny’s back. Vinny held on to the dummy’s legs with both hands.
Suddenly, the dummy pulled back one heavy shoe—and kicked Vinny hard in the stomach.
“Ohhh.” Vinny groaned and doubled over. “Hey—what was that for?” he demanded.
“For fun!” Slappy replied. “I like to get my kicks! Hahahaha!”
...

“Bye-bye.” Slappy gave Vinny another hard kick in the pit of his stomach.
Vinny gasped as pain shot through his body.
As he tried to catch his breath, Slappy slid off his shoulder. His heavy leather shoes hit the ground with a thud. And the dummy took off, running loose-legged but full speed across the corner yard.

- Slappy Birthday to You, chapter 28