*Ahem*...nice discussion we're having here. I guess I have no choice but to throw in my joke.
Mr. Ed gets up early one day and decides to go for a walk. On the way, he's picked up by a condom manufacturing company and used for animal testing. But during the testing, a condom fuses to his...umm...you know, and the company sends him back to his barn.
The very next day, he meets a young female horse on nearby Troy Farm. He finds out her name is Helen, and asks her on a date. The two of them go galloping through the meadows together, and have the time of their lives.
That night, they go into Helen's barn loft, and begin making out. As they progress into a more intimate level, the owner of the farm walks into the barn, gasps at what he sees, then becomes incensed, storms back into the farmhouse, and gets Mr. Ed's owner on the phone.
"Now, Wilbur," he begins, "I know we haven't always been the best of friends. I also know that both of us want to put each other out of business, but this is low, even for you."
Wilbur, confused, replies, "What are you talking about, Troy?"
The Troy Farm's owner, now very angry, shouts back into the phone, "Listen, Wilbur, I want you to do two things for me. First, check Mr. Ed's stall. Then, come down here and GET YOUR DAMN TROJAN HORSE OUT OF MY BARN!"