Take (someone) for a fool phrase
To think, believe that someone lacks intelligence.
You think that I can be cheated so easily, don't you? You must be taking me for a fool!
Those having taken me for a fool were all in awe after I solved that puzzle.
The king mistakenly took his servant for a fool and got dethroned by that servant.
The verb "take" must be conjugated according to its tense.
The origin of this phrase is not clear.
It was often said by a photographer when he would like small children to look at the camera and smile before he took a photo.
When the photographer said “watch the birdie”, all of us looked at the camera and smiled.