This film ranks very highly among the absolute worst animated movies ever made.Don't get me wrong -- I actually enjoy quite a bit of both the old Scooby and the more recent "What's New Scooby Doo?" -- as well as the current crop of "Mystery Inc." episodes.But "Boo Brothers" is utter dreck. It's as though the writers simply threw a variety of characters (including a talking circus ape, a sheriff/ghost whose voice inexplicably changes on a regular basis, a Renfield-style butler, some Three Stooges ghosts, a buxom farm girl who's hot for Shaggy, and a Civil War ghost who drives both a high-wheel bicycle and a steamroller) in a blender and set it on "mangle" for a few minutes. I'd go into some of the "plot" problems, but they just make my head hurt.Oh, and it's got Scrappy Doo in it, too. Puppy Power indeed!Sadly, this has become one of my son's favorite Scooby DVDs. Which means we're forced to endure it periodically -- hence the warning in the title of this review.