Yes, if he doesn't like you, I mean he's the lord of the dead.
All ancient Greek gods and goddesses are dangerous in the myths; but as Hades was a god of death it was most likely fatal to upset him.
Because he was a god of the dead.
God of the Underworld.
Yes when he is mad
His temper, and his moodiness.
he could choose where you went after you died
If you angered him. He would place you in Tarturus.
All the gods of ancient Greece could be considered dangerous, especially if they were upset or offended in some way. For the most part, though, Hades kept to the Underworld (also referred to as Hades) and left the living alone. The most notable exception was when he stole Persephone to be his wife. He was more inclined to answer curses than prayers so he could be considered dangerous in that sense. The people of Ancient Greece rarely even said his name, although this was likely more from fear of his station than fear of his specific wrath. More than most gods, though, Hades was reguarded as just and fair.
Zeus, Poseidon and Hades divided the world between them, and this is what Hades got.
Hades is Hades' Greek name.
Hades is the Greek name for Hades.
Hades the god was in charge of hades the underworld.
Hades' Greek name is Hades.