[aptwebapps]

If they're walking up to you on the platform and you're offering them free food of their choice (within reason), why not? Whereas if they're in a good, high-traffic, spot, they might not want to give it up for the free food.

I had a guy run up to me just as I was getting on the bus to ask if I could spare fare for him too. I dug it out and handed it over and he turned around and walked off. I thought that was pretty funny, especially as the fare was a quarter.