That's what I got out of this movie too, since then I'm a huge douche bag to everyone.
But seriously it's sick when someone does something nice to you just even hold the door or when you hold the door and they say thanks that makes me stoked.
I agree. I believe, "what goes around comes around," so I always try to smile at people, hold doors for em, all the small stuff many people don't notice.
Someone in front of me at the drive through recently paid for my order. When i got up to the window to get my coffee and muffin, she said..."the guy ahead paid for it." So guess what? I did it for the person behind me! (I first asked what they ordered though, to make sure it was only a couple bucks worth!) It made my day. Im sure it made someone elses.