When my little sister was four, she purposefully poured a glass of water on my Sega Pico so I couldn't play it anymore. (Then, to seal the deal, she cut the cord with a pair of safety scissors). So if a 4-year-old is aware that water + electronics = disaster, I'm pretty sure the OP's 7-year-old daughter should have that figured out by now. Then again, the OP could be exaggerating a bit - perhaps the sponge was only a bit wet. It may be hard for a kid who's 7 to realize that just a bit of water can cause a laptop some serious damage.

Bitch slap her.

Kick the baby

How did you know about the SpaghettiO's if she cleaned them off?

Use this expensive lesson wisely: next time, keep your valuables out of reach. Oh, and: give your child consequences, OP. When my boys were seven, I would have told them not to touch my computer, and they would have been old enough to listen. If they hadn't listened anyway, I would have punished them. Know your child. Act accordingly. Don't be like "Junior's" mother in Walmart the other week. Overheard: "Junior! Junior!! Junior come here! THREE....TWO....ONE!!!!! Junior? Come here Junior! Junior?" Consequences instead of talk is what matters. Junior is smart enough to understand that exactly nothing comes after ONE, so Junior continues doin' his thang until mommy finds him and forces him to continue shopping. If standing in the corner or early nap time, or no dessert came after ONE, I'd bet Junior AND your seven-year-old would be a little more inclined to obey.

At least she cleans up after herself

don't have kids

Sucks. But that's life. And having kids of course.

on the bryt side she was thoughtful enuf to try to clean up :p

Well then maybe you should explain to your daughter what she should & shouldn't do with your laptop.