To joyfully convey a novel idea with respect to software development, only to discover, via research or conversation, that said thought is merely a variation of a concept already eloquently expressed in that damn book, The Pragmatic Programmer.
E.g. Cool, but my friend, isn't that the same theme as in that book? I think you've been PragProgged.
ps. A pox on your houses, Andrew Hunt and Dave Thomas! That's right: may you suffer plain old XML for the rest of your days!