Gif Central boasts hundreds of funny animated gifs. Only the best of the best make it onto this site, with most of them having an accompanying source. No tumblr-esque one-second-long disappointments. No obscure titles or descriptions.
This is a gif of a sheep ramming into the back of a man while he is fishing. The sheep takes a few steps back and then charges at the guy as he has his back to him. The man then goes plummeting into the water.