Should the garnishee adjudged to have effects of the defendant in his possession, as provided in the preceding rule, fail or refuse to deliver them to the sheriff or constable on such demand, the officer shall immediately make return of such failure or refusal, whereupon on motion of the plaintiff, the garnishee shall be cited to show cause upon a date to be fixed by the court why he should not be attached for contempt of court for such failure or refusal. If the garnishee fails to show some good and sufficient excuse for such failure or refusal, he shall be fined for such contempt and imprisoned until he shall deliver such effects.