Only the sith deals in absolutes.
But yes, 'misjudging a fart' is very common in at least Men. So much so that there are entire articles written about why it happens, prevention, etc. Its become a meme almost.
You can help yourself by changing your diet. And Maybe getting checked up for IBS.
Haven't really seen anything from women's health about misjudging farts so I can't say. But I do know from women's health articles some women have to use the restroom after sneezing and there lives a word in their vocabulary such as 'discharge' so I feel that's probably worse.
Point being As a failed Nurse yeah. Lots of people shit themselves for all sorts of reasons. But 100% is probably too high, maybe if you're putting it on a scale of a lifetime though.