Once upon a time there was no donkey in Guizhou. So someone shipped one there, but finding no use for it, he set it loose at the foot of the mountain. A tigen ran out from the mountain. When he saw this big tall thing, he thought it must be divine. He quickly hid himself in the forest and surveyed it from a distance. Sometimes later the tiger ventured a little nearer, but still kept a respectful distance. One day the tiger came out again. Just then the donkey gave a loud bray. Thinking the donkey was going to eat him, the tiger hurriedyly ran away. After a while he sneaked back and watched the donkey carefully. He wanted to know its strength. He found that though it had a huge body it seemed to have no special ability. After a few days, the tiger gradually became accustomed to its braying and was no longer afraid. Sometimes he even came near and circled around the donkey. Later the tiger became bolder. Once he walked in front of the donkey and purposely bumped it. This made the donkey so angry that it struck out his hind legs and kicked him wildly. Seeing this, the tiger was very gleeful, 'Such as big thing as you can do so little! With a roar he pounced down on the donkey and ate it up. What made the donkey angry?

Question

Once upon a time there was no donkey in Guizhou. So someone shipped one there, but finding no use for it, he set it loose at the foot of the mountain.

A tigen ran out from the mountain. When he saw this big tall thing, he thought it must be divine. He quickly hid himself in the forest and surveyed it from a distance. Sometimes later the tiger ventured a little nearer, but still kept a respectful distance.

One day the tiger came out again. Just then the donkey gave a loud bray. Thinking the donkey was going to eat him, the tiger hurriedyly ran away. After a while he sneaked back and watched the donkey carefully. He wanted to know its strength. He found that though it had a huge body it seemed to have no special ability.

After a few days, the tiger gradually became accustomed to its braying and was no longer afraid. Sometimes he even came near and circled around the donkey.

Later the tiger became bolder. Once he walked in front of the donkey and purposely bumped it. This made the donkey so angry that it struck out his hind legs and kicked him wildly.

Seeing this, the tiger was very gleeful, 'Such as big thing as you can do so little! With a roar he pounced down on the donkey and ate it up.

What made the donkey angry?