This law is enhanced if there is an easy alternative shot which is deliberately overlooked. Some guys have all the moss - the moss is largely genetic and is totally unrelated to actual playing ability. Moss transplants have been attempted but the results have been tragically unsuccessful. The bigger they moss, the harder they fall - the more moss you accumulate the greater the probability that it will suddenly desert you at a crucial point. In very unusual cases a moss to anti-moss transition may be incomplete and the result is imaginary moss .
Many people refuse to believe that imaginary moss exists at all, others say that it is just skill.
Moss around the sides of a pocket can make it either completely impenetrable or totally unavoidable. Experienced mossters have been known to employ more than 20 separate cannons in a single shot - at this level, the balls completely lose their sense of direction and all the laws of physics collapse. Moss on balls can also make apparently wide gaps too small for another ball to pass through or make you miss a fine cut by miles. Cushions pointing the wrong way - most tables have a few dodgy places on the cushions that can be exploited by moss. Even on a perfect table though the moss can wreak havoc by exploiting the jaws of the pockets.