Though it is the case that according to the law the owner is not liable for the damages of the worker…I am inclined to say that the owner is warned by the Torah to do all that is possible to insure his workers from the danger of death or disability, as it says: “You shall make a parapet for your roof and you shall not bring blood-guilt upon your house” (Deuteronomy 22:8
), which includes any hazard which is likely to cause injury, like a mad dog or a rickety ladder [Baba Kamma 15b
, Choshen Mishpat 427:5
]. From this we learn the obligation of the owner or contractor to address the working conditions with strict care, so that they are secure from all hazards which might precipitate an accident…for if he is guilty of the sin “you shall not bring blood-guilt upon your house” and needs atonement. But this is not adjudicable before judges.