If you're ever in Dublin, his London studio has been completely moved and recreated inside the Hugh Lane gallery [1]. It's really worth visiting.

Fascinating character for sure. He once gave an interview to the Swiss public TV. He gets drunker and drunker as the interview goes and gives great insights on his art [2].

[1] http://www.hughlane.ie/history-of-studio-relocation

[2] https://www.youtube.com/watch?v=h0iWdjh4Xkg (in French)