I am reading 1Q84 from Haruki Murakami at the moment, there, the protagonist sees two moons at the night sky! I was probably thinking more about it than I thought:
In my dream, I realized that there are TWO MOONS, I was so stunned!!! I showed it to the other people around me and they all reacted like it was nothing special about it. I then took it for granted. Could slap me now for not getting lucid - that would have been THE occasion!! *argh*