BR:1-09 The Little Giraffe

I read a book that is "The Little Giraffe".

One day, there was one little giraffe. This giraffe was first giraffe in the world. He lived with best friend of rhino. They looked for food every day, but they couldn't find them. So, they tried to see one wise man. The wise man said them to come here tomorrow. Next day, only the giraffe went to there. In there, the wise man gave a drink of magic for the giraffe. Soon, the giraffe became big giraffe. After this, the giraffe went to out side. In there, there was the rhno. The giraffe asked him "Why didn't you come wise man's house?". He answered "Oh, I forgot!!". The rhino didn't remenber to go to wise man's house. He said " I want to get the drink too." But, there weren't the drink. Then, the rhino was very angry. So, rhino are angry now.

After I read this book, I couldn't understand last scene. But, I thought that rhino's image. So, I couold understand this means.
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