Those of us who do medical malpractice work are familiar with Occam’s Razor, the common understanding of which (as stated on Wikipedia) is that "of several acceptable explanations for a phenomenon, the simplest is preferable, provided that it takes all circumstances into account."
Those of us who do medical malpractice work are also familiar with the the following litigation tactic often employed by our brothers and sisters of the defense bar, known as Blore’s Razor: "Given the choice between two theories, take the one which is funnier." (from Michael Moncur’s (Cynical) Quotations).