Fun Size

The Halloween Candy has hit the store shelves!

I know this because I brought in a giant mixed bag for my desk drawer. I find I go through the day better if I have access to candy, even if I don't eat it every day. Weird, but true.

So, I have a few questions:

1. Why do they call them "Fun Size" instead of something else?
2. If I eat enough Fun Size candy bars, I put on LOTS of weight. Does that make me "Fun Size" too?
   
3. I have several friends and family members who, for religious reasons, do not observe Halloween. Or rather, as they put it, they do not "celebrate" Halloween. Do they still celebrate the Halloween candy?

Inquiring minds want to know....