I could only name one liabilty to be fair but its quite often very good dogs will have traits a little knock wont take out of em.sometimes its human aggression see this alot in coursing dogs but some bull x too some are bad to kennel bad travellers ect one i really dont like is any sort of dog aggression if a certain line or type was known for bieng fighters id avoid same as any other trait if they known for it and u dont like it steer clear