You know, I find “mustaches” to be a difficult word to read.
The word “mustache” ends with a vowel, so the pluralization only adds an s. But the sound at the end is not one that blends with an s, so an extra syllable is added in the pronunciation.
The problem is that once I consume the entire word “mustache,” there’s only one letter left. This letter ostensibly represents the entire syllable, but I often attempt to read it more literally: mus-tash-sss.
This is only one of the ways that the English language has caused me to suffer.