Just by eating, goats can save lives. Last month a wildfire in California stopped before spreading to a West Sacramento neighborhood with 250 homes because a herd of goats have been eating the weeds and low-hanging vegetation surrounding the area. They have been munching the tasty treats for the last 8 years. The result; open spaces that prevented the fire from spreading.
Have Goats, Will Travel! Several other states use this method and Colorado is home to a herd of 1200 goats that have traveled to 17 states to munch on these organic delicacies.
City-dwellers may not have access to the standard Bovidae Caprine, but there is another similar genus, the Horney Old Goat, identified by his habit of frequently napping on the couch. You can achieve similar life-saving results by equipping the old goat with a Craftsman Weed Whacker and forcing him to go outside under penalty of withheld affection.
Your ordinary garden variety goat is easier to deal with but we do what we can with what we are given!