A quick web-search reveals that the little Barney ditty was not new to Ohio 2003.

"I hate you, you hate me,

Barney gave me HIV.

(First-grader's parody of Barney theme song)"

"...no self-respecting second-grader will admit to liking Barney ("He's too childish" was the response of first-graders I talked to at the University of Chicago's Laboratory School.)"
Mitchell, W.J.T., The Last Dinosaur Book-The Life and Times of a Cultural Icon
Chapter 37 "Why Children Hate Dinosaurs" University of Chicago Press. © 1998 Excerpted from page 230-35.


Or here is a collection from etext.org Copyright 1994 PPiC -Phose Phree -N- iNNER CIRCLE
(Note the 2 Nodes Ringdown :14.4/1.5Gigs)

I hate Barney Barney hates me Let's tie Barney to a tree Hold an Uzi up to his head Pull the trigger, oops, he's dead. I love Barney, Barney hates me Barney gave me HIV With lots of shots And a condom every day Don't you know that Barney's gay I hate Barney Barney hates me Go tie Barney to a tree With a great big gun and an arrow through the head Aren't you glad that Barney's dead I watch Barney every night       {I invented this one. Don't go taking credit} Barney is the Antichrist With a 666 tattooed on his dick Damn that Barney sure is sick I hate Barney Barney hates me I shot Barney in the knee THen I shot him in the head and he fell to the floor. No more purple dinosaur! Sincerely, Gargoyle