From the Anti-Barney Humor Wikipedia article:
The Barney Fun Page is an early website that allows users to attack a crude drawing of Barney with icons representing a knife, gun, and other weapons. Hosted originally on a University of Alberta computer system, the website was created in 1994. It is among the oldest websites in the world still operating as of 2025.
Our version was slightly different at the end:
With a big fat gun
And a bullet in his head
Aren’t you glad that fuckers dead