This is the part of science that is hard to comprehend for the general public. Correlation does not mean causation. See the above image and also check this site out here. They do a really great job showing how some things are ridiculously correlated to each other but there is no obvious causation. Think about this when you hear crazy theories about autism. Or even about politics.
Falling into a pool is not caused by Nicolas Cage films. Now if it was suicide…..