A true nature is a gloomy monolith, sort of like that old black rotary phone that I had to sing 'Happy Birthday' to Grandpa on. But novelists, damn us, still need true natures - so we can give them to our protagonists. And so readers can vaguely predict how they'll behave when we trap them in 'situations' that they can't IM their way out of.
I turned 40 on the set of the reunion show for 'Sheer Genius,' so it wasn't a hideous birthday because I had everyone on the cast and crew sing 'Happy Birthday' to me, and I won $10,000 for being the fan favorite. It was really liberating to turn 40 and realize that I felt very comfortable with myself and knew who I was.
Funny story: I was hanging out with Adam Shankman for Samantha Ronson's birthday, and Lance Bass was there. I don't really know Lance, but he comes over to me and goes, 'Hey, I just wanted to let you know I'm a fan of 'Pretty Little Liars' and I'm rooting for your character.' It was surreal! That's how 'PLL' has changed my life.