The Brit from Belmont got to be F1 World Champion with all the spoils that go with it and then when retiring from driving was offered by the BBC a race commentators job with the well known Murray Walker., he was particularly harsh with back markers who held up race leaders and failed to take on board that they can't just disappear.
Known for his jokey sometimes OTT humour and short temper on the track he made some badly advised investment decisions driving him to a bit more than normal alcohol consumption and eventual passing at just 45. Ignore the 'always drunk' caption on the vid.