My favorite haiku (of the ones I have written) is technically not a haiku but a related form known as a haikai (5-7-5; 7-7). It is my zombie haikai, jokeingly entitled "Braaaiiiinnnnssss (a law school haikai".

Print swirls across blank
page, energy and knowledge
seep out as you type;

eyes glaze over. Yes, zombie
brief eats your brains as you type.