What makes Dhoni different from others? His calmness! You can scare the opponent with your aggression but it takes special ability to bother them with your calmness. Dhoni never backed sledging of others, or sledged someone back. He preferred to answer with the bat rather than words.
The third Test between India and Australia at Ranchi was filled with sledging and mocking. Virat Kohli was mocked by Maxwell and then he took revenge by acting the same way after Warner's dismissal. But was that right to react in that way? Was Australians right to mock Virat's injury. Sledging or mocking is different thing, mocking someone's injury is different. But both teams should have avoided this.
A few years when Australia travelled India in 2013, all-rounder Shane Watson had injured his leg. Despite that, he continued to bat along. However, the Indian fielders, Suresh Raina and Shikhar Dhawan to be precise, were seen mocking his injury. While Raina can be seen checking his knee in the video, Shikhar Dhawan faked and limped while fielding.
A very disgusted Shane Watson shook his head and was disappointed with the mockery by Indian fielders. It is just then that the then Indian skipper MS Dhoni arrived in the picture. He is seen indicating his boys to finish the topic then and there itself. He asks Dhawan and Raina to stop imitating Watson and get on with the game.