When Beavis and Butt-Head enter the kitchen, the hole in the window screen that the raccoon crawled through is centered in the middle of the window. A moment later, when Butt-Head is looking out through the hole, it is far enough off to the one side that Beavis is able to punch another, equally-sized hole next to it.
Keith wears his wristwatch on his left wrist, as a right-handed person would, yet in the guitar shop he is seen playing the guitar left-handed.