The CEO of a company, who spent many of her work hours surfing stamp-collector websites, frequently ordered expensive stamps that she had delivered to her work address.  One day, a very rare and expensive stamp arrived in the mail.  The CEO's assistant, who was resentful about the meager pay he received from the CEO, decided to steal the stamp.  He checked the CEO's calendar and saw that she was attending the opera the following evening.  The next night, after the CEO left for the opera, the assistant retrieved a spare key hidden under a rock and entered the CEO's home through the front door, which led straight into the living room where the stamp collection was prominently displayed.  As the assistant searched through the stamp collection for the rare stamp, the front door suddenly opened and the CEO walked in.  Upon seeing the assistant, the CEO reached into her purse, pulled out a gun, told the assistant to stay where he was, and called the police. <p>In a common law jurisdiction, which of the following crime(s) can the assistant be found guilty of?</p>