Stabbing with a spoon seriously hurts when enough force is applied, however the problem with most spoons the neck does not support the sheer force required to not only penetrate skin but survive being maneuvered once impaled for that maximum stopping power sought in a short order manner needed to open up for follow up if needed. That you are more likely to lose the head of the spoon inside the soft target. In general you're more likely to stab yourself with a spoon stabbing with a spoon. Out of most utensils to use that isn't all that sharp to use for maximum pain would be the butter knife. Get it between the ribs and pry to earn the prize of a most wondrous gargle of pain but as with most utensils you're only going to likely get one use out of it in short order.

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