1. I took his book from him when he was not paying attention.2. Love comes when you least expect it.3. The Bible says that God's kingdom will manifest itself on Earth when we least expect it.
 when somebody least expects it when somebody is not paying attention
In contrast to the rugged impession of denim, the carefully selected flannel fabric features a delicate, soft texture. Flannel brings out a city woman's delicate taste in clothes.