"you're four"

"no, I'm this old" (shows four fingers)

"yeah, you're four"

"no! I'm this old!" (shows four fingers)

"four"

"NO! THIS OLD!" (shows four fingers)

"yeah."

"yeah!"

"four."

"NO! MOOOOOOOOOOOOM! HE'S SAYING I'M FOUR!"

"You are four, honey"

"oh."