Have you ever "paid it forward"?

For those who don’t have a clue as to what that is, here’s the definition for it:

The expression ”pay it forward” is used to describe the concept of asking that a good turn be repaid by having it done to others instead.
(http://en.wikipedia.org/wiki/Pay_it_forward)

For example: Say you need five dollars to pay for a gallon of milk and you’re broke. So what you do is ask a friend (it could be some random person you want to ask, too) and they lend it to you, but on one condition: You have to pay it forward.
Don’t know what this is? Well, the next time you see someone in trouble and/or in need of help, what you can do is go up to them and help them out. But remember that you’re not doing this for some reward, such as a payback, money and such, but for simply wanting to help out. After that, that person might want to reward you for your willingness to help, but you just say, “Pay it forward.” So what you’re saying is that whenever they see someone who needs help in something, they too can help out and spread the word about paying it forward. It’s acts of kindess! This can go on and on and possibly, have a good world changing affect.

Some of you may already know of this, but there is a book called Pay it Forward by Catherine Ryan Hyde and if you want the summary for it, then just go to this link and scroll down: http://www.amazon.com/Pay-Forward-Catherine-Ryan-Hyde/dp/1439170401/ref=ntt_at_ep_dpt_1.
There’s also a movie for it, too, but I’m not going to head down to that.