from the mind-is-a-terrible-thing-to-tase dept.
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."
... when fits of creativity run strong, more than one programmer or writer
has been known to abandon the desktop for the more spacious floor.
-- Fred Brooks