Supposing a tree fell down, Pooh, when we were underneath it?' 'Supposing it didn't,' said Pooh after careful thought. Piglet was comforted by this.
Milne, George, Milne, A. A. (Alan Alexander), Shepard, Ernest H. (1977). “The World of Pooh : the Complete Winnie-The-Pooh and The House at Pooh Corner”, McClelland and Stewart, 1989