And so I was accepted by him. And that of course was another Smoking/Not Smoking [sic] situation where my career at least was derailed or on to a completely different track because I was abandoning botany and was getting into a new area because Hašek was working, and all his people were working, on animals. Mice, rabbits, chickens and... and others, but no plants. And that Hašek made very clear. If you work here you will be working on an animal project and so I had to accept that, and that was a very considerable change for me. Now, then it came to... and I think even the same day that he decided what I'm going to work on. So no postponing, nothing, he said... he was thinking for a while... I can see him puffing on his pipe and humming something. That was his usual style. And then he said, 'Hmm, let's have some fun. Have you heard of Georg Klein?' I said, 'I'm sorry, no'. He says, 'Well you will hear about him. He and Eva Klein are working on something that might interest you, and so let's have some fun. And you will be the third Klein who will be... to make some confusion... the third Klein who will be working on the similar system'. So then I... and that was it. That was... I think I'm exaggerating only slightly if I say that it was not until I came to defence of my thesis that Hašek knew what I was doing. But that was fine with me. I... actually that was perfect for me because I liked that. I wanted to have my free hand.