A person is on trial for bank robbery. The perp robbed a bank, and punched a teller. One of the jurors hates banks, and believes "No one can really rob a bank as turn around is fair play". This juror refuses to convict on the robbery despite overwhelming evidence that the crime did occur but does convict on charges based on the perp punching the teller. Assume that this was not asked or known about in juror selection.
Is that juror misconduct?
Does it change things if the juror lied during juror selection?
And really this could apply to any crime as a person may feel certain laws are unjust.