The article addresses discharge or reassignment for physical or mental inability to perform the work (including being overweight and underweight); temporary and permanent disability distinguished; and the failure of the employee to disclose a physical defect in the job application. (The article is pre-ADA.) Sick leave use, abuse, overpayment and related issues are discussed, as is absence due to claimed illness, alcoholism, allergies, workplace safety, aging, and other issues of impaired abilities.