Slamming the astronomers-should-see-UFOs myth

In my first book, Bad Astronomy, I have a chapter about UFOs in it. I have the usual sort of debunking in it, but I made a point I had not seen anywhere else at that time: why don't astronomers see relatively more UFOs than laypeople? Think about it. Astronomers, both amateur and professional, are constantly viewing the sky. There are tens of thousands of amateurs out observing all the time: a large sample population, and far larger in observing man-hours than the regular population. If UFOs are so common, then why do we not see an unusually large number of reports from astronomers? My assertion is that this is because the vast majority of UFO reports from people are misidentified objects like Venus, the Moon, satellites, balloons, and so on. These are things every amateur astronomer has seen countless times, and knows are not alien spaceships bent on probing ...