Stupid fish

My fish tank has coverings on top so the fish can't jump out and also to keep dust and other stuff from getting into the tank. However the four corners of the tank has triangular openings and I feed them at one of these openings.

So every morning before I feed them they would get very excited when they see me in the room. They would all fight for the best spot at the opening anticipating the food I will give them. You can hear splashing of water and the floor would get wet from the water they spit out!

The other day when I came into the room they were at it again. When I finally went to feed them I saw one of them on the floor! One of them had been so excited it leaped out of the tank and onto the floor. At first I thought it was dead but then I saw it moved so I picked it up and threw it back into the tank and it just swam away, no injury could be seen and it seems okay. I guess I got there just in time, any longer and it would have died! Stupid fish.