Problem with me at home when we (wife and I) go somewhere there's still at least one "kid" at home on and off so killing the main in the basement isn't an option. I was just scared and have been thinking about it when I hear horror stories of breaks when nobody is home. In NH various family uses the house and the main shutoff (usually) gets shut when it's empty. Hey for me something will always break when nobody is around, that's my luck. Like I tell people my snowthrower has never yet let me down in the summertime.
