Noise can be unpleasant in many situations, but here are some common scenarios:

1. Trying to sleep or relax
2. Focusing on work or study
3. Enjoying quiet activities like reading or meditating
4. Attending a class or lecture
5. Spending time with family or friends
6. In nature or a quiet environment
7. Needing peace and quiet for mental health reasons

Noise becomes particularly bothersome when it's sudden, loud, repetitive, or unexpected. The impact also varies from person to person based on their sensitivity to sound and individual circumstances.