A Fable about Pool Parties
It turns out that some charlatans of mathematical bent, when invited to a birthday pool party with more than 23 attendees, might attempt to affect the ambiance by noting that there was a 100% chance of at least one guest sharing the same birth date with the host/hostess.
Spoilers who are microbiological alarmists prefer to trump that data by pointing out that although only maybe 53% of the bathers peed in the chlorinated pool, 99% certainly did spit up in it.
Thus, they add with inane grins, whosoever ingested that revolting suspension in which they splashed, should prepare themselves for extreme digestive turmoil.
After reflection, guests of such celebrations tend towards absolute consternation.
Moral: Details can be so revealing.