Inventor's deviously complex machine promises to 'stop cats forever'

Craig Turner's simple water-squirting machine failed to stop neighborhood felines peeing all over his stuff. So the Australian amateur inventor resolved to build a machine so terrifying it would permanently scare the cats away. After his first gizmo, a "motion-activated explosive wheel of terror" (see it in action at 3:37), failed dismally, he stepped up his one-man war on cats with a fiendishly complicated, explosively destructive contraption guaranteed to scare away cats, birds, visiting sisters and probably even SWAT teams. If you don't have time to watch the whole clip, skip to 7:35, 8:30 and 9:49 for the hilarious results.

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