Anyone know what bad things Jason did in greek mythology?

almost every crime known to day,blinding of the cyclops,drunken driving of the ship,beheading the Medusa,animal cruelty,cutting of the heads of the hydra (animal cruelty) operating a ship with out sufficient life preservers or life boats (international maritime law),anchoring in privet waters,the sirens island (trespassing)burgley of the cyclops cave,and property theft (sheep) and lastly the stealing of the golden fleece

Jason was the son of the lawful king of Iolcus, but his uncle Pelias had usurped the throne. Pelias lived in constant fear of losing what he had taken so unjustly. He kept Jason's father a prisoner and would certainly have murdered Jason at birth. But Jason's mother deceived Pelias by mourning as if Jason had died. Meanwhile the infant was bundled off to the wilderness cave of Chiron the Centaur. Chiron tutored Jason in the lore of plants, the hunt and the civilized arts.

When Jason came of age he set out like a proper hero to claim his rightful throne. Unbeknownst, he was to play his part in a plan hatched on lofty Mount Olympus, where Hera, wife of mighty Zeus himself, nursed a rage against King Pelias. For Jason's uncle, the usurper king, had honored all the gods but Hera. Rashly had he begrudged the Queen of Heaven her due.

Hera's plan was fraught with danger; it would require a true hero. To test Jason's mettle, she contrived it that he came to a raging torrent on his way to Iolcus. And on the bank was a withered old woman. Would Jason go about his business impatiently, or would he give way to her request to be ferried across the stream? Jason did not think twice. Taking the crone on his back, he set off into the current. And halfway across he began to stagger under her unexpected weight. For the old woman was none other than Hera in disguise. Some say that she revealed herself to Jason on the far shore and promised her aid in his quest. Others claim that Jason never learned of the divine service he had performed.

Jason lost a sandal in the swift-moving stream. This would prove significant in Hera's revenge. For an oracle had warned King Pelias, "Beware a stranger who wears but a single sandal."

He betrayed Medea and that led to his ruin.