Nancy McKeon

Yes. I did more research than I ever wanted to and saw some things I wish I didn't. I went on ride-alongs, spent time with Homicide, Cold Case, and SVU detectives, hung out in subways learning how to spot pervs and pick-pockets, viewed an autopsy, went to a police firing range, and witnessed court cases and I read, read, read.

The thing about dancing - what it taught me all those years - is it gives you an amazing sense of discipline in forcing yourself to do things that you know are good for you but you don't really want to do.

Early in the 1990s, I flew alone in a dandelion-yellow, single-engine, 180-horsepower Piper Cherokee from Westchester County Airport in New York westward to the Rocky Mountains, landing and refuelling a good many times in middle-sized cities and towns along the way.