He says he is confident that the Volt battery is safe, having subjected it to more than a hundred and fifty different stresses.
He will not reappoint Janet Yellen, the most unemployment-obsessed Federal Reserve chair in American history after having subjected her to a barely veiled anti-Semitic attack, in a campaign ad that called her a tool of "global special interests".
(He's blind as a mole without his specs, apparently; probably the result of having subjected his peepers to every page of William Gaddis's The Recognitions and about half of JR).
"Of course I've had it coming to me all my life," he also says in the same letter, acknowledging the price he is paying for having subjected himself to privations for so many years.
I won't patronise you by listing all the examples of television programmes that feature an ageing male host alongside a young, glamorous female one, or all of the male rock-star pensioners who are still deemed to be 'sex symbols' without apparently having subjected themselves to surgery.
Mr Warburton said: "We've identified things like wood, plastic - there are one or two other substances which we're having subjected to forensic analysis to ensure they are not hazardous.
