Those who have successfully landed work for years doing hard manual labour, usually in sweatshops and Chinese restaurant kitchens, to pay off their debts.

CNN: From Our Correspondent: Dreaming of Gold Mountain

"It must have been incredibly hard work, I love the idea of doing a whole album in a day but the amount of takes they did was amazing, " he said.

BBC: Graham Coxon: Blur 'won't record music' this year

Anyone who has ever put on a public face when all they wanted to do was stay in bed should understand something about doing the internal hard work of compensating for a disability without showing outward manifestations of it.

FORBES: Can People Really Grow Out Of Autism?

The other thing, though, that I would say was that I still sometimes have to really work hard to grasp the magnitude and the scope of what it is that we are doing in trying to help re-establish, in a really quite a short period of time, a country's entire military structure.

NPR: Iraqis Say They Will Meet Constitution Deadline

Exceptions are made, for people in hard-to-fill jobs or those doing PhD-level scientific or research work.

ECONOMIST: Farewell, big society; hello, guest workers on sufferance