Any interference with or obstruction or any attempted interference or obstruction of or assault upon any graders, licensees, or employees of the AMS in the performance of their duties. The giving or offering, directly or indirectly, of any money, loan, gift, or anything of value to an employee of the AMS or the making or offering of any contribution to or in any way supplementing the salary, compensation or expenses of an employee of the AMS or the offering or entering into a private contract or agreement with an employee of the AMS for any services to be rendered while employed by the AMS.