If there is a scientific dispute, the minority position always turns out to be right.
If a scientist disagrees on his own field of expertise with a lay person, say a farmer or a nurse, then inevitably the scientist is wrong. Rare exceptions are allowed if the lay person is a politician.
Professors are either mad or continuously absent-minded. The first ones get killed (preferably by their own devices or creatures) the second ones get married (but are the last person to know that).

Wolfgang