The human brain can be a bizarre and disturbing instrument. Thankfully, David Shrigley is prepared to help you with the most vexing aspects of your psyche: alcoholism ("it is terrific fun, of course, but there are problems with it"); mental illness ("unlike a hairdryer, when a brain goes wrong 'you cannot just throw it in the river and get another one' "); and neurology ("We all have internal wiring. Sometimes this wiring comes loose. . . . Check...