Although McMurphy falls into the "fog" of loss of memory with the other patients, he continues to make efforts to undermine the control that Nurse Ratched has upon the ward. In Chapter 10, for example, McMurphy tries to elicit the men's support in voting to watch the World Series on the television. One method of characterization is, of course, the speech and actions of a character, and the responses of the men to McMurphy indicate well their characters. For instance, when McMurphy criticizes Harding for not raising his hand in a "yes" vote, Harding reveals his weakness and conformity.
"I tell ya, I can't figure it out, Harding, what's wrong with you, for crying out loud? You're afraid if you raise your hand that old buzzard'll cut it off."
Harding lifts one thin eyebrow. "Perhaps I am....It's still a risk....She always has the capacity to make things worse for us."
Earlier, in Chapter 4, Harding has explained to McMurphy that he is a "rabbit" who understands his role in society, and his refusal to vote underscores this psychological submission. After Harding's response, McMurphy turns to Billy, asking him if he, too, is afraid of the same thing.
"No. I don't think she'd d-d-do anything, but"--he shrugs and sighs and climbs up on the big panel that controls the nozzles on the shower, perches up there like a monkey--"but I just don't think a vote wu-wu-would do any good. Not in the l-long run. It's just no use, M-Mack."
This speech clearly indicates Billy's weakness and fears. Dominated by his mother, Billy allows Nurse Ratched to continue his emasculation and lives in terror of her as indicated by his words and his action of climbing higher "like a monkey" as a psychological method of escaping.
In his disgust of their submissive conformity, McMurphy tells those who are afraid to vote that when he and Cheswick break out of the ward,
"...I'm gonna nail the door shut behind me. You guys better stay behind; your mamma probably wouldn't let you cross the street."
McMurphy's response indicates that even though he is "foggy" at times, his individuality has not yet been taken from him, and he still refuses to conform.