（二）为他人组织作弊提供作弊器材或者其他帮助的；
when adding it to that array, then you can have unref clean up recursively:
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QStyle methods for writing things. This is what I was talking about
Take your cue from Mr Hewitt and Mr Boucker, shown here having a neighbourly chat in 1957. Photograph: Picture Post/Getty ImagesIt’s only natural to fear rejection, humiliation, giving offence or overstepping a boundary when we initiate a conversation – or even when we respond to someone else’s attempt. But according to a study by the University of Virginia (Talking with strangers is surprisingly informative), we overstate these fears in our minds: “People tend to underestimate how much they’ll enjoy the conversation, feel connected to their conversation partner and be liked by their conversation partner.”