We need to talk. I've been holding something in for a long time, and I need to get it out. In case you haven't met me, I'm female, 5'1" and 125 (grrr) lbs.
It is for this reason that you are not doing me any favors by giving me a large when I ordered a small. I didn't order a small because I'm cheap or poor. I ordered a small because either a) I wasn't that hungry or b) I can't eat that much goddam food. You are contributing to obesity in America - MY obesity - by forcing extra food on me that I don't need. Please stop.
You are not doing anyone any favors by overpouring the alcohol in my drinks. Not only will I buy fewer drinks, but I can't stay at your bar as long and I might end up puking on you.
More is not better. If you love me, if you love your shoes, if you want a country where everyone is thin and beautiful, you will stop giving me extra portions of crap I don't want.
The rest of the world doesn't feel this way :-)