The Sewer to Table movement in China is thriving
Rat meat sold as lamb in latest China food scandal
Not only rat, but fox and mink...you'd think marketing fox would get a better price than lamb.
When I grew up, cane rat was a delicacy. Really quite good.
Also fairly common (but not as common as cane rat) was the giant pouched rat -- people would eat that one too, but I don't recall ever doing so myself.