One of our neighbors posted a photo of "chemtrails" and explained her worries about the military jets that are pumping this poison into our skies. She asked if anyone had noticed the particular "X marks the spot" pattern that the chemtrails made that day targeting our neighborhood.

I said that our area (SF Peninsula) has major north-south and east-west airline traffic routes overhead, so it would not be surprising to see an occasional "X" pattern in the sky.

I also mentioned that the trails in her photo actually looked like formations of crystalline dihydrogen monoxide, and I provided a helpful link to http://dhmo.org/ where she could learn more about DHMO.

She thanked me for the post and started citing some of the information from the DHMO FAQ in her subsequent comments!