[Silver Knight]

Read my edited post above.
I pretty much told you why I didn't want to give you the script.

And yes, trial and error is how you learn.
It's how I learned ages ago, and it's how other people should learn.
Through trial and error you'll discover ways that work, ways that don't, and in the process you will expand your knowledge of this scripting language.

Oh, and everything has to do with NPCs.
This is a script that would go in an NPC, and thus, would allow the player to interact with it.

Edit: If your honestly willing to learn, we will teach you.
As the saying goes:
"If you give a man a fish, you feed him for a day. If you teach a man to fish, you feed him for life." (Not sure if that's the actual correct wording, but you get the point, right?)