Crocodile Hunter Steve Irwin died following a stingray attack. A great human being whose goal in life was conservation of wild animals. It is such a irony that the a person who played and handled all kind of wild animals died following a stingray attack, one of the mildest animal.
 According to wikipedia: Dasyatids(Family of Stingrays) generally do not attack aggressively or even actively defend themselves. When threatened, their primary reaction is to swim away. Life holds all kinds of surprises.