Why does Bud attack the hornet's nest?

In Chapter 3, the Amoses make Bud sleep in the shed because they believe Bud was beating on their son in the bedroom. While Bud is lying down in the dark shed, he notices something hanging from the ceiling. Bud believes that there is a vampire bat hanging upside down. Bud is terrified of vampire bats and he picks up a gray rake, then stands on a woodpile.He takes a gigantic swing at what...

In Chapter 3, the Amoses make Bud sleep in the shed because they believe Bud was beating on their son in the bedroom. While Bud is lying down in the dark shed, he notices something hanging from the ceiling. Bud believes that there is a vampire bat hanging upside down. Bud is terrified of vampire bats and he picks up a gray rake, then stands on a woodpile. He takes a gigantic swing at what he thinks is a bat, and ends up hitting a hornet's nest. Bud says that it sounded like a buzz saw was turned on in the shed and he gets stung multiple times by the hornets. Bud mistook the hornet's nest for a hanging vampire bat and ended up unleashing the fury of six hundred angry hornets. Bud is forced to jump on the woodpile and bust out the window in order to escape from the shed.