The 3pm meltdown is biology.

You know the scene. They walk through the door and immediately fall apart. Backpack on the floor. Shoes kicked off in opposite directions. Tears about a snack. Tears about someone being mean at recess. Tears about nothing you can identify.

I didn't realize what was happening until I turned off the screen.

My four-year-old had been watching a show about dragons. Bright colors, constant motion, everything spelled out in vivid detail. When it ended, he asked for more. I said no. He whined for a minute, then wandered off.