Please answer the following question: Please answer the following question about this movie plot. If it's un-answerable, please output "No answer". Question: How does Eeyore claim he ended up in the river? Movie plot title: Winnie the Pooh and a Day for Eeyore Movie plot: The film begins with the invention of a racing game called Poohsticks in which Pooh takes a walk to a wooden bridge over a river where he likes to do nothing in particular. On this day, though, he finds a fir cone and picks it up. Pooh thinks up a rhyme to go with the fir cone, but he accidentally trips on a tree root and drops it in the river. Noticing that the flow of the river takes the cone under the bridge, Pooh invents a racing game out of it. As the game uses sticks instead of cones, he calls it "Poosticks". Later that day Pooh, Piglet, Rabbit and Roo are playing Poohsticks, then see Eeyore floating in the river. After somehow rescuing him with a rock, he tells them that he fell in due to being bounced from behind. Piglet assumes it was Tigger who bounced Eeyore into the river. When Tigger arrives on the scene, he claims that his bounce was actually a cough, leading to an argument between him and Eeyore, but with some outside help from the narrator, Winnie the Pooh and his friends find out that he had indeed deliberately bounced Eeyore on page 245. Tigger says it was all a joke, but nobody else feels that way. Tigger disgustedly says that they have no sense of humor, and bounces away. But as Eeyore seems particularly depressed this day, Pooh follows him to his Gloomy Spot and asks what the problem is. Eeyore says that it is his birthday, and nobody has taken any notice to celebrate it. Pooh decides to give him a jar of honey, but does not get far before he has a hunger attack and ends up eating the honey. He decides to ask Owl for advice. Owl suggests that he writes to Eeyore on the pot so that Eeyore could use it to put things in. Owl ends up writing a misspelled greeting (hipy papy bthuthdth thuthda bthuthdy means A Very Happy Birthday, With Love from Pooh)on the pot and flies off to tell Christopher Robin about the birthday. Piglet, who heard about Eeyore's birthday from Pooh, planned to give a red balloon to Eeyore, but when Owl greets him from the sky, Piglet does not look where he is going, hits...
Answer:
He was bounced from behind