When Nelson goes to punch him , Bart slips and inadvertently kicks Nelson in the face , leading the other kids to view Bart as the new school bully .
Meanwhile , during a stunt through the poorly drained school playground , Bart gets mud all over Nelson .
When Nelson goes to punch Bart , Bart slips and inadvertently kicks Nelson in the face , leading the other kids to view Bart as the new school bully .
Meanwhile , during a stunt through the poorly drained school playground , Bart gets mud all over Nelson .