Jane and John are both tenants and neighbours at a residential estate .Jane runs a posho mill business on the premises adjoining the house of her neighbor John .The posho mill disell propelled and when in use causes a lot of vibration.Recently as a result of vibration from the posho mill a beam fell from the roof and the house occupied by John and injured him.john claimed that the vibration of the posho mill has annisance and as a result sued Jane for damages .Explain the legal principles applicable for this case and advice both Jane and john