How generous?

I was walking around the bus stop yesterday, trying to move around a little to contrast with sitting around at a desk all day, when I noticed a cultural phenomenon that I'm not sure has ever been explored.

Smokers are typically generous with their cigarettes towards other smokers. "Hey man, you got a smoke?"

The typical response is a free cigarette. So I wondered how generous they would be with something less valuable. Cigarettes are expensive for their size.

What would be the response for "Hey man, you got a fry?" I mean, it's kind of a personal thing, a single piece from a larger package, and it fits in the same category as something that isn't particularly healthy, but is enjoyable.

I imagine that the response would be something along the lines of a strange look and some form of "No". But I can't be sure it's something I think would be interesting to do field research on.

Also, I'm excited for the new Firefox to show up out of beta. The little banner below will take you to a page where you can set up a notification for when that happens.