McPHEE v. GENERAL MOTORS LTD.

February 23, 1970 Master and Servant — Negligence — Safe system of work — Plant and equipment — Apparatus designed by employer — Whether duty to design competently — Unpredictable behaviour of apparatus known to employer — Employer's duty to warn employees and indicate precautions to be taken — Employment of maintenance fitter to rectify fault — Whether affecting employer's general duty of care or precautions — Employee's reliance on employer's assurance that apparatus safe — Whether negligent.