逆反心理

duì tā men xìng zāi lè huò de gāo xìng jìn r nì fǎn xīn lǐ qǐ le zuò yòng

对他们幸灾乐祸的高兴劲儿，逆反心理起了作用。

The reverse psychology of their cheerful sense of doom worked well.