From the interview by Dale Berning Sawa for The Guardian:
When I knocked on the door, this is how he greeted me: in a blue onesie, unbuttoned at the front. He wasn’t laughing; it was as if it were completely normal. Not “Look what I’ve done!” but “Oh, you’ve arrived. Here I am.”
It was like he was challenging me, in a comical way – testing me to see how I’d react. He had a very dry sense of humour. And I thought: “What a gift!”.