A three-year-old boy and his brother-in-law playing wiffle ball for all of one second.
Despite its ostensible brevity, the video actually consists of several auditory and visual components that come together just right to make the whole thing perfect. Redditor Tunnel_Estate expands:
The casual backhanded drop as the kid walks away. The boink noise of it resonating as it hits the ground. The ball swooshing behind him and gravity instantly taking it down. ... and finally the look of disconsolate wtf from the [brother-in-law] as he resigns himself to the cameraman.
And here it is in animated GIF format for your perpetual enjoyment: