Max is a repairperson for a Cable Installers 'R Us, Inc. The job requires travel to residential homes in the area to install and repair internet connections into homes. This job requires climbing, reaching, crawling, lifting up to 80 pounds, affixing satellite dishes to exterior surfaces of homes, using power tools including drills and saws, running cable wires, working under changing weather conditions and driving company vehicles to and from customer residences. Max has been employed in that position for the last four months. Max's supervisor, Jim, just learned from his friend at Internet Installers LLC that Max resigned from Internet Installers LLC one year ago to enroll in a supervised in-patient drug rehabilitation program. Cable Installers has no evidence that Max is currently using. What are the rights and obligations of Cable Installers 'R Us, Inc. under the law regarding Max's employment with respect to any past or current drug use? Explain.