Buying watch dog can help with home security

You've reached your 4 FREE premium stories this month

Already registered? Login Now

Get 4 more FREE stories

Simply register to continue.


Subscribe now

Get access unlimited access to premium stories.

A group of Chihuahua dogs, Traviata, left, Iago, front, Aida, right, and Gioconda, behind center, run together along the Charles River, in Boston, escorted by their owner Domenico Mastrototaro, of Boston, not shown, Monday, Aug. 1, 2011. All the Chihuahuas are named after operas with the exception of Iago. (AP Photo/Steven Senne)