If you'd ever had problems with wild ones, you'd hate the things.
Carry disease in their pee and piss and shit everywhere they go.........
Thay also have little gland pouches on the side of their cheeks which they rub against thing as they run along, marking the route (their memoery span is less than 12 hours, so don't expect them to remember that you were the one who fed them the day before...)..
Those markings are like a highway to food for all the rats in the neighborhood...bastards..fekkin hate them....although they do do a good job as long as they stay in their own environment (underground)...