Sign up for the Slashdot Daily Newsletter! DEAL: For $25 - Add A Second Phone Number To Your Smartphone for life! Use promo code SLASHDOT25. Help SAVE NET NEUTRALITY! ×
wintersynth writes "We hacked a toy brainwave reader to electrocute people if their brainwave frequency got too high (by concentrating). We took outputs off of the 5 level LED indicator, put the outputs through a transistor/resistor/relay circuit to give 2 levels of high voltage through an electric shock circuit right into the user's arm."