I just about beat the shit out of a Wal-Mart Self-Checkout machine today, does that count?
While my dad was picking up some prescriptions, I gathered up a load of spare change- mostly pennies- and grabbed a bag of Skittles. As cashiers don't like counting pennies, and since they all remember me as the kid who always forgets his ID when he wants to buy R or M-rated materials, I went to a self-checkout machine. Despite having about 25 cents extra, I ended up about 13 cents short because the machine wouldn't take old copper pennies or, strangely enough, nickels. After cycling through my remaining coins a few times, determined not to call someone over to cancel the purchase, I had gotten the total to 6 cents. Frustrated and pissed, I jammed an old, cut-up copper penny into the coin slot. I got 4 cents in change. I didn't question it, I just took the candy and left the store.