A landlord and a tenant have been arrested after a rental dispute turned violent inside a subdivided flat in Hong Kong.Police received a report at about 11 a.m. on Sunday that a man had splashed suspected corrosive liquid on another man at a flat in a building on Prince Edward Road West near Portland Street in Mong Kok.Officers wearing shields rushed to the scene and found a 41-year-old landlord and his 42-year-old tenant scuffling over the lease, during which an unknown liquid was...