have a finger in the pie
to be involved in something, often when your involvement is not wanted
参与其事;(常指)多管闲事
You have to bear a share of the responsibility if you want to have a finger in the pie.
如果你要多管闲事的话，你也要承担一份责任。
She is always eager to have a finger in the pie if her neighbours are planning any little festivity.
要是她的左邻右舍准备办任何小的喜庆事，她总是巴不得掺和一脚。
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