Yoga has kept him fit - the 78-year-old has been teaching at the VHS Peißenberg for 40 years. The first yoga classes took place in the basement of a bank.

In the course room in the Rigi Center you can now hear car traffic instead of birds. Vinegar takes it all in stride: “As a yogi you learn to be flexible” This also applies to the exercises. “I always have to adapt to my own development,” says the yoga teacher.