Discipline is on the wane in schools and colleges these days.

To give a rap on the knuckles

To strike one's colours

Queer somebody's pitch

He is a <u><em>person after my own heart</em></u>.

His father advised him to be <u><em>fair and square</em></u> in his dealings lest he should fall…

To pour oil in troubled water

I won't mind even if he <u><em>goes to dogs</em></u>.

<u><em>To all intent and purposes</em></u> he is a good man.