Son #2 is wearing shoes when he walks.
One early morning, we put on a pair of new summery shoes. He bent over to admire them and then took his first tentative steps. His shoes squeaked. Son #2 stopped and investigated them again. He stood and took a few more steps.
Son #2 laughed as he ran all over the house. It wasn't a regular sprint either. Son #2 was purposefully stomping as he ran causing his shoes to squeak with intensity.
Fifteen to twenty minutes of nonstop squeaking passed. A sweaty little baby raced from room to room shrieking with joy. While all this ruckus was happening, our eldest son was getting ready to go to school.
Son #1 grabbed his backpack and lunch bag. He followed his dad to the garage door. Just before he walked through the door, Son #1 turned to his younger brother and shouted. "BYE SQUEAKY!"
Son #2 stopped and grinned at his brother. Then with a squeal of laughter, he was off again.