He was right - I was surprised.

Expecting him to drop the deal, I was surprised by his reply.

Hint: many companies do not have performance evaluation systems in place, so you may catch your interviewer by surprise.

Gathering himself quickly up, he stood more erect, like a man taken by surprise in a mood to which he was reluctant to have witnesses.

When we see someone get hurt we get startled, and react with tension. It also twists relationships.