As a rational person, what would you conclude if time after time a black cat crossed your path and you had a bad day.
That would of course, depend on how many times it happened and if there can be a causal relationship defined between cats and a particular kind of strife. Bad day is kind of ambiguous, and as far as I can tell, there isn't such thing as fortune, so there cannot be misfortune. We could also investigate cases of other people reporting their bad black cat crossing experiences and see what sort of accounts we get from them.
Of course, most will agree that this is absurd and cats of any sort do not produce "bad luck" less the case of Roy Horn attempting to domesticate and train feral white tigers for entertainment purposes.
He told me that when he woke up he would say to his mother (my daughter) that he was hungry.
How were you told?
