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In case of hydrofluoric acid ingestion , do not induce emesis . If you have high or low blood pressure , do not hold strenuous , forward-leaning poses and , in all poses , do not hold your breath . In case of formalin ingestion , do not induce emesis . In case of ingestion , do not induce emesis . In case of hydrogen peroxide ingestion , do not induce emesis . For example , do n't try to do the constraint 's job for it . For the average Mac user the Linksys product line is a very POOR choice since they do n't support the Mac platform , do n't supply a configuration wizard , and do n't even mention the Mac platform in their documentation .