...camarada Sha, ¿no será Res ipsa
loquitur?
Res ipsa loquitur is a legal term from the Latin meaning literally, "The thing speaks for itself". The doctrine is applied to claims which, as a matter of law, do not have to be explained beyond the obvious facts. It is most useful to plaintiffs in negligence cases.
http://en.wikipedia.org/wiki/Res_ipsa_loquiturSaludos.