Crime doesn´t pay: if you do something illegal, you will probably be caught and punished
Police arrests are being given maximum publicity as a reminder that crime doesn't pay.
Hell to pay: serious problems
There will be hell to pay when you get back home.
Pay someone a backhanded compliment: Fig. to give someone a false compliment that is really an insult or criticism.
I hate it when someone pays me a backhanded compliment—unless it's a joke.
Pay an arm and a leg (for something): Fig. to pay too much [money] for something.
I hate to have to pay an arm and a leg for a tank of gas. If you shop around, you won't have to pay an arm and a leg. Why should you pay through the nose?
Pay someone back: Fig. to get even with someone [for doing something].
I will pay her back for what she said about me. Fred eventually will pay Mike back. He bears grudges for a long time. He intends to pay back everyone who has wronged him!
Pay homage to someone or something: to openly honor or worship someone or something.
Do you expect me to pay homage to your hero?
Pay lip service (to something): Fig. to express loyalty, respect, or support for something insincerely.
You don't really care about politics. You're just paying lip service to the candidate.
Pay the price: to accept the unpleasant results of what you have done
She dropped all her friends when she met Steve and now that he's gone, she's paying the price. She has no one to turn to.
Price one has to pay: the sacrifice that one has to make; the unpleasantness that one has to suffer.
Being away from home a lot is the price one has to pay for success.
Pay it forward: used to describe the concept of asking that a good turn be repaid by having it done to others instead.
In 2000, Catherine Ryan Hyde's novel Pay It Forward was published and adapted into a Warner Brothers film. In Ryan Hyde's book and movie it is described as an obligation to do three good deeds for others in repayment of a good deed that one receives. Such good deeds should be things that the other person cannot accomplish on their own.
Have you seen the movie?
Do you remember what it was about?
Who do you think is the main character?
Let´s watch this segment (one of my favourites!) Pay special attention to the teacher and the assignment he presents to his students.
What type of project does he present? What characteristics does it have?
How do his students react?
Last class we discussed a video called "Educating the Heart", do you think this teacher is taking it into account? How does he do it?