Your daughters are playing on the computer downstairs and it needs to be restarted. So your husband goes to restart the computer and you hear your 7 year old start whining.
"But Dad, can we play on your laptop?"
"Nope, I'm using my computer."
"Well, can we play on Mom's laptop?"
"Mommy's using her laptop."
"But Dad, we need more computers in this house. We only have three!"
In our defense, the laptop belongs to my husband's work. And both my husband and I were doing legitimate work on our laptops. But still. I'm thinking three computers for four people should be enough.... I'm just sayin'!