>>>I think my favorite joke is about a talking horse. It must be a genre.
>>
>>Long jokes used to be a genre when I was 15... I didn't hear too many of them, though :).
>>
>>As an example to the contrary, a short one:
>>
>>A horse enters a pub and comes to the bar. Bartender: "why the long face, pal?"
>
>A horse enters a pub and buys a pint of beer.
>"That'll be $13" says the barman. "Um, we don't get many horses in here"
>H: "I'm not surprised with the prices you charge"

...at that point, the four donkeys at the nearby tables just lowered their heads a bit.