"The Beaver Meets Mr. Ed" by Unknown Author (Red Dragon Repost). The gist of this story can be summarized in the following cryptic conversation:

"Wh-, What are we gonna do, Wally?"

Wally stared thoughtfully at the corpse.

"Aw, Beave, I don't know", he said timidly, "I mean we can't just go and tell Mrs. Mondello that her son got raped to death by a rabid horse at the circus!"

This story reads just like a sexually-enhanced episode of "Leave It to Beaver." Of course, it's not very realistic, because that show didn't have a talking horse, nor did the fathers of Mayfield usually punish their children by sodomizing them. Such considerations aside, this is a really funny story. It even includes this gem near the end:

"You look fine, Beave, but just don't breathe on Mom. You've got horse cum on your breath."