Sentence 1: Gus is a good dog except on rainy days. 
 Sentence 3: If he hears the rainy falling he paws at the glass door 
 Sentence 4:  Gus's owners bought a thundershirt to make Gus calmer on rainy days 
 Sentence 5:  Gus is now a good dog every day 
 Option 1: When it rains, Gus barks and hides around the house. 
 Option 2: When it rains, Gus barks and runs around.