Can a juror who instruct a defendant not to testify be found guilty of misconduct?

"The Fifth Amendment to the federal Constitution provides that no person 'shall be compelled in any criminal case to be a witness against himself.' . . . The right not to testify would be vitiated if the jury could draw adverse inferences from a defendant's failure to testify. Thus, the Fifth Amendment entitles a criminal defendant, upon request, to an instruction that will 'minimize the danger that the jury will give evidentiary weight to a defendant's failure to testify.' " (People v. Leonard (2007) 40 Cal.4th 1370, 1424-1425.) A juror's violation of an instruction not to consider the defendant's failure to testify constitutes misconduct. (Id. at p. 1425.)