What you do is go out and offer the raccoons some Spaghetti-Os. When they are busy slurping down that “Neat round spaghetti you can eat with a spoon”, you shiv ‘em with an ice pick.
Ice pick would be a shank, not a shiv. Where I'm from, Shanks are metal, Shivs are non-metallic.
http://www.urbandictionary.com/define.php?term=shank
http://www.urbandictionary.com/define.php?term=SHIV
If you want to use a shiv, start rubbing the handle of your toothbrush or a disposable razor on concrete pavement.