"Burning out" versus "punching out".
D000060:Accidents, Aviation / Q000517:prevention & control; D000328:Adult; D001359:Aviation; D003937:Diagnosis, Differential; D004185:Disability Evaluation; D005069:Evaluation Studies as Topic; D006801:Humans; D008297:Male; D009784:Occupational Diseases / Q000175:diagnosis / Q000523:psychology*; D011602:Psychophysiologic Disorders / Q000175:diagnosis; D012179:Retirement; D014481:United States; D014942:Workers' Compensation