My secret is out

I accepted a new position at a small startup company last week. So Friday I turned in my notice. Now word is starting to filter around the office. I'm getting some mixed reaction, but generally positive. The less positive are the people looking at me like I'm jumping out of the Titanic in the only lifeboat. Everyone else is generally optimistic for me and I've gotten a lot of nice comments. Plus, everyone keeps joking that I could always come back.