All Bones Considered: Laurel Hill Stories #076, part 4

Rat Catcher Lou Bossle was proud of his profession - it is even carved onto his Laurel Hill West tombstone. Twice in the 1890s, Philadelphia newspapers sent a reporter to keep him company in rat-infested basements while he was on the job.

I'll tell you about the long relationship between humans and rats, and share some of the methods used by ratcatchers of yore. 

If you're a little squeamish, this one might make you squeam.