I was under weather and winding up a long day.
Six year old was trying to help out – like opening the door while I take the milk can. [Next morning, the milkman should come, take the can, pick the coupons up and place milk pouches.]
The young one pulled my shirt.
“Papa, you are missing something.”
“What? This one is for milk!”
“But we buy two liters of milk. Don’t we? This one is for milk – but what is there for the ‘two liters’?”
I looked inside. I had missed to place the coupons.
… We have decided to inspire the kid to become a physicist!