**Why did George and Harris' reaction irritate Jerome?**

Jerome, the narrator of the story "Three Men in a Boat," was irritated by the reaction of his friends George and Harris. The reason behind Jerome's irritation can be attributed to the fact that George and Harris did not take the task of packing seriously.

**Lack of Responsibility:**
One of the main reasons for Jerome's irritation was the lack of responsibility shown by George and Harris. Packing for a trip requires careful planning and organization, as it ensures that all necessary items are taken along. However, George and Harris were careless and nonchalant in their approach to packing, which annoyed Jerome.

**Unreliable and Unhelpful:**
Jerome expected his friends to assist him in the packing process. However, both George and Harris seemed to be uninterested and unhelpful. Their lack of involvement and contribution made Jerome feel frustrated and burdened with the entire responsibility.

**Disregard for Time:**
Another factor that irritated Jerome was George and Harris' disregard for time. They were constantly running late and not taking packing seriously. This caused unnecessary delays and added pressure on Jerome. Their casual attitude towards time management aggravated Jerome's annoyance.

**Lack of Understanding:**
George and Harris failed to understand the importance of packing efficiently for a successful trip. They did not comprehend the significance of organizing belongings, which ultimately resulted in them forgetting essential items. This lack of understanding further frustrated Jerome.

**Inconsiderate Attitude:**
George and Harris displayed an inconsiderate attitude towards Jerome's efforts and concerns. They did not take his suggestions or advice seriously, undermining his role as the organizer of the trip. This disregard for Jerome's input added to his irritation.

**Conclusion:**
In conclusion, Jerome's irritation with George and Harris' reaction can be attributed to their lack of responsibility, unreliability, disregard for time, lack of understanding, and inconsiderate attitude. Their casual approach towards packing not only added to Jerome's burden but also jeopardized the success and smoothness of the trip.

As they were sitting without doing any work while Jerome was packing
so it irritated Jerome