Once upon a time, in a cheerful little town, there lived a boy named Tim. Tim loved to play with his blocks. He would stack them high, making tall towers. One sunny day, Tim was playing with his blocks in the park.
As Tim was stacking his blocks, a dog came running by. The dog bumped into Tim's stack, and the blocks fell down. Tim was sad, but he did not shout. He knew the dog did not mean to knock down his stack.
Tim started to stack his blocks again. This time, he made an even taller tower. But something unexpected happened. The dog came back with more dogs, and they all helped Tim build the biggest stack ever. They all had fun together, and Tim made new friends.
