I have a theory about people who develop software.

Let's say you got a lego kit when you were a kid.
Did you follow the instructions to build the kit or just use the bits for your own purpose?

EDIT: so, a lot of you have said things like 'followed the instructions once - how do I answers?' I guess answer what motivated you to want the lego set in the first place: the model (i.e. following instructions) or the bits.