Unsymmetrical dimethylhydrazine (UDMH) (1,1-Dimethylhydrazine) is a hypergolicrocket fuel[?] ingredient, often used in combination with the oxidiser, nitrogen tetroxide.
UDMH is toxic, and can explode in the presence of oxidisers.
... first to have the title of "Tyrant" was Pisistratus in 560 BC.
In modern times Tyrant has come to mean a dictator who rules with cruelty.
Bullying is a form ...