These are wealthy individuals who invest, on their own or as part of a syndicate, in new businesses. Not only that, they make their skills, contacts and experience available to the businesses they invest in: those television 'dragons' are angels too. Away from business, angels are an order of beings superior to mortal man in power and intellect. In Judaism, Christianity and Islam, they bring messages from God or help Him do His work. The word has been used in English since Anglo-Saxon times and comes originally from the Latin angelus. Figuratively, an angel can be a person who resembles an angel in temperament or behaviour. The idea of an angel as someone who hands over money is American: 'One who possesses the means and inclination to "stand treat"', explains a slang dictionary of 1891. The business use is a recent adaptation of Broadway jargon for those who invest in theatrical productions - and they really do need God on their side.
There is a moral dimension to business, but you can take it too far.
In our second Changing Lanes podcast, we talk to people who have successfully pivoted their career by pursuing further study, finding a mentor or taking a sabbatical.
The law is changing so that parents who have lost a child will be entitled to take paid leave.
How a can of dog food inspired a $100m business.
Recognising there's a problem is only half the battle.
Do your research and be prepared to walk away if the deal doesn't feel right.