While the balloon drops there is a noise that sounds almost like circus music trying to get the viewer to laugh and to set the mood . The cat then started talking to the balloon and the music gets lauder and higher pitched letting the viewer know that something is about to happen . The can then started reaching out for the balloon and pops it . This seen alone is funny because the viewer does n't expect the balloon to pop .

Question: Why might the viewers not expect the balloons to be popped by the cats ?
Answer: Because people think cats are very smart but might not know how to pop a balloon .Because people think cats are not very smart and might not know how to pop a balloon .Because people think cats are not very smart but might know how to pop a balloon .Because people think cats are very smart and might know how to pop a balloon .