I went into the bathroom to take a shower and there was a fly, buzzing and buzzing around. I snuck out of the bathroom when it was away from the door, grabbed the flyswatter, and snuck back in the bathroom. The fly was nowhere to be seen. Thinking it got away, I snuck out, put the flyswatter away, and went back in the bathroom. Back was the fly, buzzing around, buzzing around.
At this point, I suspected the fly could actually move through space and time. Snuck back out, grabbed the flyswatter, went back in the bathroom. No fly. This time, I cleared my mind and listened. Soon I heard the buzz. It was around my head. I waited until it was in front of me, then went swipe swipe with the flyswatter.
Result: one dead fly, trapped in the holes of the flyswatter.
So it wasn't actually moving through space and time, but it had managed to render itself invisible. But invisible only to eyes, not to ears. And that was its downfall.