I want to be the kind of person that helps others where it matters, and here you are, asking, thus proving it matters. Refusing becomes really uncomfortable, so I'd rather go out of my way to make it possible for me to agree, or failing that, to help your underlying need as much as I can.
I realize now this is a form of typical mind fallacy - I wouldn't ask you for something if it wasn't really fucking important or I had any other option available, therefore I naturally assume that your act of asking already proves the request is very important to you.
I guess I just learned I'm a Guesser :).