fish and aliens

On the finale of Last Comic Standing, they counted down some of the top moments in Last Comic Standing standup. This quote of Kathleen Madigan stood out:

I don't believe in anything. Anything on A&E, Aliens, fine. I believe them. My brothers are so scientific. "Well, there's no proof." What if they're just smarter than us, and that's why we don't know they're here... Like fish don't know we're up here, but we're certainly snagging them whenever we feel like it. Every time you catch one, those other fish are swimming around going, "Hey, wait a minute... where did Bill go?" And you know when we throw Bill back, the other fish do NOT believe his story about where he was.