Pooh Invents A New Game

Pooh was collecting fir-cones in the forest when he tripped and dropped one into the river. And that was the beginning of the game called Poohsticks. When Eeyore is bounced into the river , luckily Pooh has a sort of idea to hoosh him out. But did Tigger bounce Eeyore into the river, or did he just cough?