
The original quote attributed to Picasso in 1951 quotes him as saying that 'even if he were imprisoned, he would draw on the dust-covered prison walls and on the floor, with his fingers dripped in his own spit' (see above). This expansion appears to derive from an interview given by actor Dustin Hoffman to the L.A. Times in 2001.
http://articles.latimes.com/2001/mar/04/entertainment/ca-32985
Disputed