For years in parsha class, during the week of parshas Noach, the teacher would tell my class that rainbows were a promise. They were a promise that G-d would never flood the world again. Each and every class would continue with the same discussion about how one isn't supposed to show a rainbow to anyone else. S/he must only say a bracha. The reason for this, is because the rainbow is a sign that the person, who is seeing it, is doing something wrong and he must do tshuva.
However, there is apparently a new story...
and that is, that if one shows someone else a rainbow, that is loshon hara on the world. Apparently, one wouldnt know the world is bad if NOT FOR THE RAINBOW!
I also cannot figure out how you can speak loshon hara on the world. From what I learned in HS, Loshon Hara is exclusive to Jews.
I dont know. WHATEVER. lol.