The Talmud has a discussion whether one can wrap or wear felt to bring out of the house into a public area. Rav allows and Shmuel prohibits. The Talmud then retracts that attribution that Rav prohibited. The Talmud brings a story that Rav was in a town and was about to give a class outside and they brought him a felt pad to sit on. He refused the pad and everyone assumed it was because he did not permit carrying a felt pad into a public domain. His answer is precious: Rav did not sit because two other Rabbis- Rav Kahana and Rav Assi were present and they did not sit. Out of respect for them he did not sit on the felt pad.
What a beautiful story. The beautiful part is that halacha was a springboard to demonstrate a concept of respect, admirations and sensitivity. All things which are the whole point of halacha to being with.