(1) Where a party or an intervenor is unable to expect a judge to make a fair trial, he or she may file an application for challenge of such judge.
(2) No party or intervenor shall file an application for challenge after he or she has submitted his or her statements on the case in writing or verbally: Provided, That the foregoing shall not apply where he or she is unaware that the cause of challenge exists or the cause of challenge occurs after he or she has made his or her statements.