Lott Puns Now Doing Double Duty

Here's Tim Lambert, Thomas Spencer and skippy the bush kangaroo on John Lott's Journal of Irreproduceable Results. And here's Mark A.R. Kleiman (who, I just realized, has initials which spell out his first name), who has one of the best comments to date on the matter.

I'm sure someone has already thought of this, but how reliable is a self-reporting survey of "defensive gun use" in the first place? After all, people who brandish or fire a gun defensively and end up dead at the end of the encounter aren't going to be very cooperative when someone phones to poll them. How do any of these surveys account for that fact? Why aren't these polls called surveys of "survivors of defensive gun use" or "successful defensive gun users"?