Old Nick says:

Ah! Yes. My best one was here, where they started talking about using
windmill on a boat to sail straight upwind. After I was allowed to
make a complete idiot of myself for a while, I was informed to treat
it as being like a boat tacking constantly. I slunk away. But I DID
come back and admit my error!

Heehee - I remember that one. A classic. ;-)

Steve