I had two oscars when I was a teenager. I didn't have a hood for my tank, but I kept a piece of sheet aluminum over it. I went away for the weekend and my parents shut my bedroom door. Well, the oscars were used to being fed at 7:00 am. The tiger was pretty agressive and would eat out of my hand. Anyway, I guess the hunger got the best of him and he started crashing against the sheet aluminum. At some point he jumped out of the tank. My Dad found him some time after 9:00 am and tried to revive him for a few hours, but he didn't make it. I've loved oscars ever since then.