An example of what I'm talking about is buying a snow blower because the past few winters have been very snowy, only to find that the next several winters after buying have hardly any snow, i.e. "it stopped snowing because I bought a snow blower".

Another example is finding yourself often carrying an umbrella just in case it rains, but forgetting it once it actually does rain, i.e. "it rained because I forgot my umbrella today".