A person so licensed shall not take or receive in pawn or pledge for money loaned, or take, receive or purchase property, bonds, notes, securities or articles from a minor, or the ownership of which is in or is claimed by a minor, or may be in the possession or under the control of a minor, or a person appearing to be intoxicated or known to be a thief or known to have been convicted of larceny or burglary. A person so licensed shall not carry on another business or avocation in the building in which pawobrokering is carried on, nor employ a person under the age of sixteen to take pledges in pawn.