にかぎって

-にかぎって【-に限って】

●あの人に限ってそんなことはしない. He is the last man (in the world) who would do a thing like that.

・私はその日に限って帰りが遅かった. That was the only day that I was late getting home.

・うちの息子に限ってそんな悪さをするなんて考えられない. I can conceive of others being capable of such wickedness, but our son? Never!

・彼が休みを取っている日に限ってやっかいな問題が起こるんだ. The only time we get really big problems are the days when he's on leave.