Totally unrelated to the date thing, but there's the bit where Superman gets confused about who he should take the nuclear warhead away from.

I think it was Bobbart who had a fic (I can't remember which one) where Clark was uncharacteristically smart and didn't fall for the con game. The quote in the fic was something to the effect that Lucky Leon's plan depended on Superman being gullible enough to take a warhead away from some people just based on some other people's say-so. "That was probably why Lucky Leon was in (gadgets or whatever) instead of operations for the KGB." I wish I could remember this fic and quote because it's much more amusing than I'm making it sound.