Or at least a little pin that extends so I can pop the balloon of other heads that get too close and crowd me (because myrobot head needs his space, too).
The pharmacy manager explained to me that neither gemfibrozil nor Vicodin was actually dispensed by human pharmacists but by a robot, and she speculated that the robot must have filled my prescription (with gemfibrozil) and then gone on to the next prescription (Vicodin), somehow putting both kinds of pills into the same vial.