滚开我有病过来我有药
[gŭn kāi wŏ yŏu bìng guò lái wŏ yŏu yào]
Literally means, 'Roll Away If You Are Sick; Come Over If You Have Medicine'. It's a funny and sarcastic way of dealing with different types of people. If others are trouble-making (sick metaphorically), ask them to leave; if one can contribute (has the metaphorical medicine for cure, solutions, or help), then he/ she's welcome.