It is said that if a person goes to the toilet on New Year's Eve and casts a spell "Kanbari Nyudo hototogisu (a little cuckoo)," he or she would not see the monster all the new year round.
大晦日の夜に厠へ行って「加牟波理入道郭公（ほととぎす）」と唱えると翌年一年間は妖怪に遭わないと言われる。