If you're being chased by a serial killer in Dakota County, be sure to dial 911.
Heart attack? House on fire? You've fallen and you can't get up? Ditto.
But what if the neighbors are making too much noise, you see a suspicious car circling the block or you have a parking complaint? What if a child prankster dials your home and makes rude sounds into the phone, or if a car alarm down the street won't shut up?
In that case ... dial 911.