A position in which the normal or periodic job responsibilities of the employee entail, at some point and to some degree, a higher level of concern for the safety, health, and/or welfare of the employee in that position, his or her co-workers, those who use our products or services, those who come onto or in contact with Company property, and the public at large [and for whom the illicit use of drugs and/or misuse of alcohol by the employee in that position could create a greater danger to the safety, health, and/or well-being of those individuals].