Luckily for Leo Varadkar, he clearly doesn't have much in common with Donald Trump. They do share one instinct, though. That is a sometimes irresistible urge to stir the pot. When things are coming to the boil, why not nudge the temperature just a little higher?
The US president is addicted to creating chaos. He is happiest when surrounded by orchestrated mayhem. If things are tranquil and going to plan, he seems to panic. It is then that he succumbs to an old temptation. By word or deed, he will bring about a brand new drama.
On a totally different level, the Tánaiste has also had moments, when going against the grain, that might seem more trouble than they're worth. His supporters argue this is his primary strength as a politician. A tendency to call out things as they are, not as we wish them to be.
On the other hand, detractors bemoan what they describe as his solo runs. Their argument is he just loves shooting his mouth off. They say the Fine Gael leader just can't resist chasing an easy headline, basking in the glow of another self-created media storm.
However, Varadkar's decision to query the certitude offered by chief medical officer Tony Holohan and his National Public Health Emergency Team (Nphet) on Covid lockdowns is a pivotal moment in our fight against the pandemic.
As is his wont on such occasions, he did not hold back. The suggestion that medical specialists may be somewhat removed from the lives of those termed 'ordinary folk' carried a sting in the tail.
The inference was clear. Can elite medics, secure in highly paid prestigious public service jobs, fully appreciate the plight of a bar worker, or coffee shop waitress whose life has been upended through loss of income or job?
Therein lies the ultimate conundrum as this pitiless Covid onslaught shows no sign of ending.
There are two Irelands in its sights. One is largely protected from its ravages; the other is reaching a kind of breaking point.
Latest figures for our economy prove this beyond doubt. For example, the tech sector - other than the imposition of working from home - is operating largely as normal. The truth is that other groups, including the well-off elderly, also have a protective barrier to help them through the hard times.
But for thousands of workers and business owners, not only in the obvious catering and tourism sectors, lives have been shattered. Living standards have plummeted. And for many of those living a kind of nightmare, there is little light at the end of the tunnel.
Varadkar's controversial intervention on the workings of Nphet touched on a central dilemma: we may continue to impose lockdowns of varying hue. But what is the endgame, if any?
The truth is nobody knows what further excruciating demands this pandemic will impose on us. The reality is that we are on a journey into the unknown. This has to be accepted by even the most talented and perceptive specialist in infectious diseases.
The old adage that doctors differ is especially apt when confronting a disease devoid of cure. On television, sundry experts expound endless theories as to how we should progress. All the while, there is no international consensus as to the best way forward. Too many countries are really only reacting to the latest crisis.
The 'who knew what, and when' backdrop to the Varadkar-Nphet jousting is really neither here nor there. But the fact that the exchange took place is a good thing. It has forced all involved to reappraise where we are.
We are bartering jobs and livelihoods. Maybe there is no choice if we are to silence the death knell sounded by this disease. But when it comes to payback time, will the dreaded word 'austerity' once again become part of our regular vocabulary? Will the eventual settling of the Covid bill require cuts and tax hikes, redolent of dark post-Celtic Tiger days?
In the meantime, we are lucky to have some of the best medical brains in the world holding the line. Their commitment to the common good is beyond doubt. But Varadkar has reminded them, and us, of an old truism. They know a lot. But there's a lot they don't know.