▁nature ▁gives ▁warning ▁of ▁the ▁consequences ▁to ▁be ▁expected . ▁If ▁to ▁the ▁element ▁of ▁danger ▁there ▁is ▁added ▁knowledge ▁that ▁the ▁thing ▁will ▁be ▁used ▁by ▁persons ▁other ▁than ▁the ▁purch aser , ▁and ▁used ▁without ▁new ▁tests , ▁then , ▁ir res pective ▁of ▁contract , ▁the ▁manufact urer ▁of ▁this ▁thing ▁of ▁danger ▁is ▁under ▁a ▁duty ▁to ▁make ▁it ▁carefully ▁... ▁If ▁he ▁is ▁neg lig ent , ▁where ▁danger ▁is ▁to ▁be ▁for ese en , ▁a ▁li ability ▁will ▁follow ." ▁ ▁Lord ▁At kin ▁used ▁the ▁concept ▁of ▁legal ▁neighb ours ▁in ▁an ▁address ▁to ▁the ▁University ▁of ▁B irmingham ' s ▁Hold sw orth ▁Club ▁on ▁ 9 ▁May ▁ 1 9 3 0 , ▁in ▁which ▁he ▁commented ▁that ▁" the ▁man ▁who ▁swe ars ▁unto ▁his ▁neighbour ▁and ▁disappoint eth ▁him ▁not ▁is ▁a ▁person ▁comm ended ▁by ▁the ▁law ▁of ▁mor ality , ▁and ▁the ▁Law ▁enfor ces ▁that ▁by ▁an ▁action ▁for ▁bre ach ▁of ▁contract ". ▁On ▁ 2 8 ▁October ▁ 1 9 3 1 , ▁just ▁over ▁one ▁month ▁before ▁he ▁heard ▁Don og h ue , ▁Lord ▁At kin ▁also ▁used ▁the ▁principle ▁in ▁relation ▁to ▁def am ation , ▁per j ury , ▁fra ud ▁and ▁neg lig ence ▁in ▁a ▁lecture ▁at ▁King ' s ▁College ▁London . ▁ ▁"[ A ▁man ] ▁is ▁not ▁to ▁inj ure ▁his ▁neighbour ▁by ▁acts ▁of ▁neg lig ence ; ▁and ▁that ▁certainly ▁covers ▁a ▁very ▁large ▁field