Todd Feinman
Dogs are angels that poop in your yard.

Maybe UFOs Are Just Future Humans Watching Us
That would certainly be an interesting explanation for all of the mysterious objects being shot down from the sky lately.
Uh, no. Dunno how many stoners have come up with this idea before some fancy scientists did. There are many reasons why that theory is absurd. This is why it is good for scientists and skeptics to read about the history of the phenomenon.