Given below are a legal principle and a factual situation. Apply the given legal principle to the factual situation and select the most appropriate answer to the question given below:
Principle: Whoever intending to take dishonestly (with an intention to cause wrongful loss to another or wrongful gain to himself) any movable property without that person's consent, moves that property in order to such taking, is said to commit theft.
Factual Situation: A had lent his watch to B for a period of a month. Two days after he had done so, he walked into B's office to find the watch on B's table. He decided to take the watch back. A was prosecuted for theft.