Rats

This book on rats was one of the most interesting things I read last year. Did you know they can chew through concrete? Anyway, tonight, after a concert, a friend who also had read the book took me to the alley where the author had done most of his rat watching. Indeed, the alley, which is behind an Irish bar and a Chinese restaurant, has a hell of a lot of big, creepy, active rats. While I was watching (for about 30 seconds, which was all I needed), it occurred to me that the alley still had a severe rat problem after a nationally published book had been written on that particular infestation. Are they refusing to deal with the problem because they're proud of the rats?