He took part in the demonstrations held consequent to the death of Jan Opletal, which led to the closing of universities and colleges.

[1][2] Miler was cremated on the day after his death, and he is interred at the Slavín tomb in Prague's Vyšehrad Cemetery.

In approximately fifty of them, the protagonist was his most famous creation, the small mole (Krtek in Czech).

Since he was strongly influenced by the films of Walt Disney, he looked for an animal as the main character.

[5] In the beginning, the mole spoke, but Miler wanted his creation to be understood everywhere in the world, so he decided to use his daughters as voice actors, reducing the speech to short non-figurative exclamations in order to express Krtek's feelings and world perception.