Pope John XXIII (not the latest one, but another John XXIII, one of the “antipopes” of the 15th century. In fact, one of the reasons the more recent John XXIII took the XXIII and not the XXIV is precisely to eliminate this guy from memory and disparage his claim to popedom.) was a pirate before he became pope.
Reportedly he never once did confession or took part in the sacraments. He was also charged with rape, murder, simony and incest.
But don’t worry, the popes today are nothing like this. At all. Ever. Rest assured and drink in every word they speak. What could possibly go wrong?