it makes me laugh. don’t know if it’s just because I’m tired, or for the general whimsy of it, but i keep watching it over and over and i never seem to get sick of it. i think it’s important to have things that just make you laugh for no reason.
edit – okay, i had a look on google, which was sad enough, but there are people out there who got really quite obsessed about this thing (and it’s been around for the last couple of years). the hippo (and accompanying dog) are called pat and stanley and are the creations of a french animator called pierre coffin. so there ya go.