Hacker's Dictionary aka The Jargon File, to the rescue:
RTFM /R-T-F-M/ /imp./Yes, RTFM is rude. It comes from a time before the Web, when if you were even in a position to ask how to use a computer application, it was assumed that you were in a university setting, that you would know enough to read any instructions provided before asking for help. Access to the Internet was provided for university students in the form of a UNIX shell account. I had such an account at FSU in the '90's. UNIX help was provided with the MAN pages. If you asked for help without having read the relevant MAN page, you were wasting someone's time.
[Unix] Acronym for `Read The Fucking Manual'. 1. Used by gurus to brush off questions they consider trivial or annoying. Compare Don't do that, then!. 2. Used when reporting a problem to indicate that you aren't just asking out of randomness. "No, I can't figure out how to interface Unix to my toaster, and yes, I have RTFM." Unlike sense 1, this use is considered polite. See also FM, RTFAQ, RTFB, RTFS, RTM, all of which mutated from RTFM, and compare UTSL.
Ok, we can take the "F" out, and RTM is still legitimate, and more polite. Read The Manual. We do a lot of hand-holding at the public library, (with MS Word, for example), but are you doing them a favor if you fix their problem for them, and don't show them how to use the "help"? Yes, it's less trouble, but they will profit more if you let them control the mouse and talk them through a search in the "help" for their answer. Don't protect them from the learning curve.