Chinese:

禍不單行

(Huòbùdānxíng)

English:

“Disaster never travels alone.”

The informant specifies that this proverb, like the others, can have multiple meanings and is often used in everyday speech to mean different things, depending on the context.  “Disaster never travels alone” (literally: “Misfortunes never come singly”), most often, means that bad things will follow other bad things — that disasters cluster.  However, the saying can also mean (though less often used), that disasters aren’t random, but in a sense provoked.  It’s an essentially pessimistic saying, not meant to uplift but to warn.