Could you be more precise? Are you repeating the "it's impossible to voluntarily place a work in the public domain" canard? There are well-established precedents in the US and Europe for authors waiving copyright. See djb's FAQ: http://cr.yp.to/publicdomain.html. If you are really paranoid and want a wordy license written in legalese to the same effect, you could use CC0. There's a detailed FAQ here: http://wiki.creativecommons.org/CC0_FAQ. There's also the Unlicense patterned on SQLite's public domain declaration: http://ar.to/2010/01/dissecting-the-unlicense.
In short, if you agree with the philosophical and practical advantages of releasing your code into the public domain, there is no excuse not do so under the guise of legal FUD.
In short, if you agree with the philosophical and practical advantages of releasing your code into the public domain, there is no excuse not do so under the guise of legal FUD.