My grandson asked why I always put his lunch bag in the freezer for five minutes before we leave for school

He was genuinely baffled. I'd already packed his sandwich, his grapes, his juice box — everything ready to go. But then, like clockwork, I'd open the freezer door and tuck that whole lunch bag right in there while we finished getting ready.

I looked at him with my warmest grandma smile.

Punchline

"It's called a cool down period, honey. The lunch bag gets five minutes to chill so the ice pack actually has a fighting chance."