Saw one about 8 years ago. During the day too. It was in the shape of a silver marble. It wasn't a plane or a jet because this object was flying higher than any plane or jet normally would. As it was crossing the sky, it suddenly stopped for two seconds, went back the way it was coming from, stopped again, and suddenly flew across the sky in the opposite direction at a speed that was atleast five times the speed that it was flying previously. It dissapeared into a patch of clouds and didn't see it again. I honestly didn't know what to think. I believe that were not alone but what it is that is out there? I have no idea.
"Fathers, hide your daughters. Daughters, hide your fathers. I'm like an ostrich. I'll stick my head in any dirty hole."- Pain