Rufus Oakly is acording to his bio a slob and smelly dog and a runt. Rufus met Buck in a forest and have made an everlasting bond since then. Another intresting fact is that Rufus is a runt as it says in his bio
Rufus is the runt of the litter even though in the sims there is only a litter of one and there are litters of only one.
Rufus is the only dog in the family that is not a "mutt"
Rufus is favorited by most players but Hamhock is most likely Bucks favorite since he saved Bucks life