I left the bike on my second floor enclosed back porch(I live in a REAR apartment) unlocked while I used the restroom before going back out. I even left my back door open, which is like fifteen feet away from my bathroom. The porch is practically an extension of my house, and it's pretty private. It's enclosed and my yard is even gated. Of course leaving your bike unlocked is negligent and risky, but it felt natural. And I was gone for literally five minutes. I was naieve, and he either had good taste or was very desperate. Someone saw him riding it down North Ave. towards California the night of it's theft. He was youngish, twentysomething, and Hispanic.