The examples of Brutus, 2052 years ago, and Dion, just days back, illustrate the dangers of coups d'etat, both attempted and successful.
Brutus, we know from Plutarch, was a plodding, honest opposition senator. He became concerned, then angry, at the arrogant ways and brazen usurping of power by Caesar. So he helped form a coalition of knife-wielders.
The coalition dispatched Caesar on the Ides of March. But Brutus was an honourable man, at least in Shakespeare's view, and, rather than bury the body in the dead of night, he allowed a public funeral and a funeral oration by Marc Antony.
The speech was a masterpiece of truth, half-lies and spin. Brutus and the coalition lost the PR war. There were riots, followed by civil war. Brutus chose the wrong side.
His army faced defeat, he faced capture. According to Plutarch, he said, "we must fly, not with our feet but with our hands." His hands took a blade and pushed it into his chest.