if there's no candy,I will be getting up to mischief.
参考:捣蛋鬼;小淘气 A mischievous person;an imp. 小孩子老想捣蛋。 The children are always getting up to mischief. 不要再捣蛋了。 Keep out of mischief. 他们显然是存心捣蛋。 They were evidently bent on mischief. 男孩爱跟他捣蛋。 The lad is fond of acting up with him. 那孩子总是调皮捣蛋。 That boy is bull of the Old Nick. 那男孩只想调皮捣蛋。 The boy was bent on mischief. 那个男孩是个小捣蛋。 That boy's a little menace. 我的小弟真是个捣蛋鬼 My little brother is such a rogue! 这些孩子又在调皮捣蛋了。 The children have been acting up again.