IV. The time required for an object to fall twenty stories is greater than or
equal to the time it takes for whoever knocked it off the ledge to
spiral down twenty flights to attempt to capture it unbroken.
Such an object is inevitably priceless, the attempt to capture it
inevitably unsuccessful.
V. All principles of gravity are negated by fear.
Psychic forces are sufficient in most bodies for a shock to propel
them directly away from the earth's surface. A spooky noise or an
adversary's signature sound will induce motion upward, usually to
the cradle of a chandelier, a treetop, or the crest of a flagpole.
The feet of a character who is running or the wheels of a speeding
auto need never touch the ground, especially when in flight.
VI. As speed increases, objects can be in several places at once.
This is particularly true of tooth-and-claw fights, in which a
character's head may be glimpsed emerging from the cloud of
altercation at several places simultaneously. This effect is common
as well among bodies that are spinning or being throttled. A "wacky"
character has the option of self-replication only at manic high
speeds and may ricochet off walls to achieve the velocity required.
-- Esquire, "O'Donnell's Laws of Cartoon Motion", June 1980