Hee! That's pretty funny
Good job!
I'd suggest, though, that you set up the time frame first thing - it took me a few moments to figure out what was going on, and it's crucial to your joke. Just start off with "Lois was there to apologize to the Kents for getting their son killed", or something. That sets the episode *and* makes it clear Lois doesn't know ... what everyone else knows. Which is
so funny... I'm laughing again just thinking about it!
Hope you don't mind the suggestion; I was just, you know, brainstorming...
PJ