Now you have two choices, to dump the original rule and try to find a new one, or to see if you can modify your rule to handle the uncooperative situation. That is the question. Generally it is easier to modify an existing rule to handle the new situation. If this doesn't work or creates a rule which is cumbersome and full of special cases than this is often a signal to seek for a new and cleaner rule. Returning to our wind example you can handle the honey problem by defining a concept of viscosity.
Air is very unstiff and honey can be quite stiff.
This rule works pretty well for most situations you can think of and still explains the original observations about riding on a horse just fine. The ultimate test of a rule is to use it to predict an, as yet, unobserved behavior. The earth is surrounded by air which is a low viscosity medium. Given the evident size of the earth and the length of a day if the earth is rotating it must be spinning quite quickly. Therefore the earth must be stationary.