Theory:

When everybody has short hair,
The rebel lets his hair grow long.
 
When everybody has long hair,
The rebel cuts his hair short.
 
When everybody talks during the lesson,
The rebel doesn’t say a word.
 
When nobody talks during the lesson,
The rebel creates a disturbance.
 
When everybody wears a uniform,
The rebel dresses in fantastic clothes.
 
When everybody wears fantastic clothes,
The rebel dresses soberly.
 
In the company of dog lovers,
The rebel expresses a preference for cats.
 
In the company of cat lovers,
The rebel puts in a good word for dogs.
Explanation:
  
Meaning of rebel: A rebel is  someone who refuses to do things in the normal way, or in the way that other people want them to.
 
The poet explains all that a rebel does, in this poem. In this poem, the rebel is a young child who does everything different from others, to stand out of a crowd. He contradicts himself, just to be different.
 
1. When everybody had short hair, the rebel wanted his hair to be long. When others had long hair, he cut his hair to make it look short and unique.
 
Rebel hair.jpg
 
2. When all the students in class were engaged in a conversation during a lesson, the rebel kept quiet. But when others were silent, the rebel created a noise so that everybody would notice him.
 
Rebel class.jpg
 
3. When all the other students wore the uniform to school, the rebel came in bright, attractive clothes. When others dressed attractively, he wore serious and formal clothes.
 
Rebel uniform.jpg
 
4. In a group where all of them liked to own a dog as a pet, the rebel said he preferred cats. But when he went to a group of cat lovers, he appreciated his love for dogs.
 
Rebel dogcat.jpg
 
Meanings of difficult words:
 
No.
Words
Meanings
1
rebelsomeone who refuses to do things in the normal way, or in the way that other people want them to
2
fantasticextraordinarily good or attractive
3
soberlyin a serious, sensible manner
Reference:
National Council of Educational Research and Training (2007). Honeycomb. The Rebel - D.J.Enright (pp. 33-35). Published at the Publication Division by the Secretary, National Council of Educational Research and Training, Sri Aurobindo Marg, New Delhi.