my little guy likes to go out all day long too. if you rule out a uti or or health problem they are just curious and get bored inside. romeo is on a schedule. he knows exactly when he goes out. a schedule helps big time. becareful letting him outside alone. he could be stolen or killed by an owl or hawk. we went out leisurely for 2 years and on day an owl came down and almost got him. i ran and got to him first and the owl continued to chase both of us. a very scary day i will never forget.