If, as a result of the Consultant's inability to perform substantially all of his duties hereunder by reason of a physical or mental disability or infirmity (i) for a continuous period of fifteen (15) calendar days or (ii) at such earlier time as Consultant submits satisfactory medical evidence that he has a physical or mental disability or infirmity which will likely prevent him from returning to the performance of his work duties for fifteen (15) calendar days or longer (a "Disability"), the Company may terminate this Agreement. The date of such Disability shall be the last day of such fifteen (15) calendar days period, or the day on which Consultant submits such satisfactory medical evidence, as the case may be.