Now,
Marci really has a rat problem. Those pics are something else.
I don't know why someone in Baltimore had one of these -- though this building looks suspiciously like my old apartment building -- but when I was in Providence the local liberal activist group had one of these. They paraded it around at all their protests and accused the protestee of the day of being a rat, ratting out the low-income residents/minorities/union workers/fill-in-the-blank, allowing rats to thrive in their substandard housing, etc. It made for great sound bites and never failed to make it into a newspaper photo or B-roll (PR lingo for TV footage).