Firefighters said it took them a second to process what they were seeing before getting back to the business at hand.
They were able to round up the animals after putting out the flames.
He was taken, in handcuffs, to a different hospital than the victim.
Both are expected to recover.
Comeau was arrested and charged with arson of a dwelling, mayhem, attempted murder, assault and battery causing serious bodily injury, aggravated rape and violating a restraining order violation.