Certainty? In this world nothing is certain but death and taxes.
I’m sure that my colleagues currently scouring the grounds of Miskantonic University for the errant Schrödinger’s cat who departed from the Quantum Research laboratory would certainly agree with Mr Franklin’s assessment. Another interested in the first certainty is the writer of the Blog of Death, which provides Obituaries of the famous, infamous and interesting unknowns.
For those with a more macabre sense of humour, there’s always the Stick Figure Death Theatre with more animated stick figure flash movies and games than even the greatest men of leisure have time to watch. Just don’t get me started on taxes.