TAKE BY SURPRISE

{v. phr.} 1. To appear in front of someone suddenly or to suddenly discover him before he discovers you; come before (someone) is ready; appear before (someone) unexpectedly. * /The policeman took the burglar by surprise as he opened the window./ * /When Mrs. Green's dinner guests came half an hour early, they took her by surprise./ 2. To fill with surprise or amazement; astonish. * /Ellen was taken by surprise when the birthday cake was brought in./ * /When our teacher quit in the middle of the year to work for the government, it took us all by surprise./