Gustl owes his adoption to his friendship with Ferdinand. Ferdinand was born with five legs and the farmer turned to Gut Aiderbichl because he wanted a different fate for Ferdinand than fattening. When Eva Zach picked up Ferdinand, she noticed the close bond between the two bull calves and asked the farmer if she could take Gustl with her. He gladly agreed and so Gustl was able to move into Gut Aiderbichl Henndorf after Ferdinand's operation.