A stupid remark- guys on street corners indeed! I'm not talking about sweepers and pearl divers. Although even they require some training and be certified and bonded by the support company hired by the hospital, building management or whatever.

For technical or laboratory or patient care jobs, can they take 4-5 years of technical training overnight? And pass the provincial (or state) certification tests?
What are the minimum requirements for handling patients in your state or province? Perhaps a practical nurse whose duties are limited might get a job with two years training and a high school diploma, but that is about the minimum.
The import has had the training and can pass the tests, although in some fields an apprenticeship of 1-2 years is necessary even if they have equivalent qualifications.
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John, perhaps I was lucky, but I never met with dishonest support and maintenance in the companies I worked for or with.