Lemony Snicket's simply told story offers a refreshing, thoughtful, and hilarious look at the ways in which a bad mood wreaks havoc as it moves from person to person, leaving an unexpected trail of surprise in its wake: opportunities for laughter, forgiveness and even love.


小捲毛皺著眉頭、擺著一張臭臉跟在媽媽和弟弟後面，因為兩個小時前，他們經過冰淇淋店，卻沒吃到冰淇淋，這讓小捲毛很不開心，從此壞心情黏上了她。小捲毛隨手撿起地上的小樹枝，拿來戳弟弟，雖然被媽媽責備，但小捲毛心情變好了，壞心情飄到媽媽身上，後來又黏上老盧、黑貓、小鳥……它遊遍了世界上的每個角落，每個人曾經遇過它好多次。而小樹枝從小捲毛手上輾轉來到柏特手中，成為冰淇淋店的招牌，讓柏特常保好心情！