Code v Design

As someone who earns a living by coding in flash i have a large volume of pre built code from sites, games, screensavers and various presentations already built.

I am also constantly asked by friends and others for bits of that code for their work. Most of the time paid work. "Hey can i have that nav thing you did", or "hey you know the scroller can i get the code to work on my site".

Now normally i'm cool with this as it's helping out a friend and they woudl do the same but after doing soemthinkign i realised that this sint the same when it comes to design. Why is my flash code seen a common property but anything else is hands off.

If i asked "hey can i use that logo you did last year for this company i'm doing the ID for. I just need to change it a little... that cool" people would say fuck off. So why different for code. I guess it's not seen as being designed.

When i think more about it they are two different things and a logo is alot different to a bouncey nav.

Anyway still feels wierd that what i do fpr a living and what ive been paid to do is seen as common property.