How dare a researcher risk a study that might contradict their firmly held beliefs? Shame.

How did Jonathan Swift put it?

...if a lie be believed only for an hour, it has done its work, and there is no farther occasion for it. Falsehood flies, and truth comes limping after it; so that when men come to be undeceived, it is too late; the jest is over, and the tale has had its effect: like a man, who has thought of a good repartee, when the discourse is changed, or the company parted; or like a physician, who has found out an infallible medicine, after the patient is dead.