"The respondent may well feel aggrieved that there should not be an attempt to hold him accountable for conduct which lacked deliberate intention on his part at the time. But that is not the test. Intention or motive is not required, as the High Court has said. The objective of the Act is to eliminate_, as far as possible, discrimination against persons on the ground of disability in areas of public life; and therefore proscribes, not merely deliberate discrimination, but thoughtless discrimination as well. Employers are required to be vigilant in their regard for circumstances affecting the interests of their employees. I agree, at least in the circumstances of this case, with the interpretation of the Act advanced by Counsel for the respondent, namely, that s.5 is about objective discrimination. It is not necessary that an employer know the existence of the disability. It is enough if an employer is shown to have discriminated because of a manifestation of a disability."_