'The employer shall ensure, as far as is reasonably practicable, that all persons who may be directly affected by his activities are not thereby exposed to hazards to their health or safety.' (Occupational Health and Safety Act) The season of goodwill, holidays, celebrations and year-end functions is upon us once again. And with it comes a timely reminder to employers that, while their 'zero tolerance' alcohol-at-work policies may be key to maintaining health and safety in th