Well, they sure fooled me!
I like to think that I know a thing or two about science and engineering. Quite apart from that, I have read enough court transcripts to know when someone is telling porkies1. Or so I thought.
I was utterly convinced that the U.S.A. had really landed men on the moon. Everything seemed to fit. I recently wrote an article about the parallax problem. From any place on Earth at a given time and date, the moon is in a different part of the sky. So: to convince everyone on Earth that a live feed was coming from the moon, it had to come from the moon.
To my shame, I now have to admit that I am not as good at science as I thought I was. There is no way I am going to argue against Neil Armstrong. If he says the moon landings were fake, that's good enough for me. And he does, as you can read here. But I have to say, that was some hoax! It even fooled Hank, and that's a world class achievement by itself!
 - Porkies - Cockney rhyming slang: pork pies = lies.
livescience.com moon hoax