Theory:

     Once comfortable, he would take the soap in his hands or feet, and rub himself all over. When the water became cold, he would get out and run as quickly as he could to the kitchen-fire in order to dry himself. If anyone laughed at him during this performance, Toto’s feelings would be hurt and he would refuse to go on with his bath. One day Toto nearly succeeded in boiling himself alive.
 
     A large kitchen kettle had been left on the fire to boil for tea and Toto, finding himself with nothing better to do, decided to remove the lid. Finding the water just warm enough for a bath, he got in, with his head sticking out from the open kettle. This was just fine for a while, until the water began to boil. Toto then raised himself a little; but, finding it cold outside, sat down again. He continued hopping up and down for some time, until Grandmother arrived and hauled him, half-boiled, out of the kettle.
Explanation:
 
When Toto ultimately gets inside the water and makes itself comfortable, it will take soap in his hands or feet and start rubbing all over his body. It will remain in the water until it is warm. Once the water gets cold, quickly it comes from it. It would then make its way to the kitchen to dry itself with the kitchen flames.

Toto would love the bath session every time, and if anyone laughed at Toto during this session, Toto would refuse to proceed with his bath. The author has provided a detailed, humorous narration of Toto's bathing style in this paragraph, allowing the reader to envision and appreciate the monkey's bathing style.

Days passed. One day, Toto came dangerously close to being burned alive. The grandmother kept a big kitchen kettle on fire to prepare tea. Toto got into it by opening the lid, thinking it was prepared for its bath. Unfortunately, when Toto opened it, the water was warm enough to take a bath.
 
When the water was only lukewarm when Toto got into it, the fire underneath the kettle gradually increased the water to boil. When Toto sensed something wrong, it wanted to come out but sat back due to the cold weather. As a result, it hops up and down for an extended period before the narrator's grandmother arrived.
 
When the narrator's grandmother saw Toto on a boiling water kettle, she rushed and carefully pulled Toto from the boiling water. Toto was almost half-boiled in the kettle's boiling water.
 
Meaning of difficult words:
 
S.No
Words
Meaning
1.
Hop
To jump on one leg
2.
Lid
The top of a box or other container
3.
Haul
To pull something with a lot of effort
4.
KettleA container for boiling water
Reference:
National Council of Educational Research and Training (2006). Moments. The Adventures of Toto – Ruskin Bond (pp. 7-10). Published at the Publication Division by the Secretary, National Council of Educational Research and Training, Sri Aurobindo Marg, New Delhi.