Final answer:
Under common law, arson was defined as the burning of another person's house. Modern laws have expanded the definition, but historically, a person could not commit arson against their own property.
Step-by-step explanation:
At common law, the crime of arson could be committed only if a person burned down the house of another person. This means an individual who set fire to their own house, like Ramon in the given scenario, would not technically be committing arson under common law principles. To constitute arson, the property burned must belong to another person. Over time, modern statutes have expanded the definition of arson to include structures other than dwelling houses, and even the burning of one's own property under certain conditions.