If you're a bad actor, you don't get hired. But if you're a bad doctor, you can still practice medicine.

In Richard Burton and Elizabeth Taylor: The Love Letters. How drinking cocooned them from pressure of fame. Without it, they couldn't even make love, Mail Online, 7 June 2010

Richard Burton and Elizabeth Taylor: The Love Letters. How drinking cocooned them from pressure of fame. Without it, they couldn't even make love[dailymail.co.uk]