Rodent related saying was wonderful.. How about some body parts saying.

Out to lunch to day, late (2pm) and still it was a mob scene, even though I am in a dull boring part of Manhattan–the civic center. Close to city hall, and courthouse, and immigration. No shops or special tourist sites. (Unless you consider city hall a tourist site)

Who would have expected that I needed to sharpen my elbows before venturing out?

That, I think, is special to NY– any other things we do with or use our body for? (or do any of you also sharpen your elbows to fight through a crowd?)