Prior to making his name as one of the biggest and most recognizable rock stars as frontman of the Rolling Stones, Mick Jagger worked as a porter ( errand runner) at a mental hospital.

Suddenly, songs like '19th Nervous Breakdown' and 'Mother's Little Helper' make a lot more sense, huh? You could also say this explains how he's able to deal with Keith Richards... of course, some days the guitarist would probably suggest Jagger should have been a patient, not an employee.