"We had simulated essentially everything we could think of or anything anybody could think of on that flight, all previous flights, and in centrifuges, in zero G airplanes, and procedure trainers and that kind of stuff. And yet the very first seconds of the flight were a total surprise to everybody because the Saturn V which is a big tall rocket, kind of skinny, more like a whip antenna on your automobile, [and we were] like a bug on the end of a whip…"
January 1, 1970
https://en.wikiquote.org/wiki/Bill_Anders