Do most people actually believe that the term "Celtic" (as in the people, not the basketball team) is pronounced with an S instead of C? See, I've always known it was the "C" sound, and I always do a double take when anyone mentions the basketball team because "Seltics" just sounds wrong to me. Maybe it's just a northern thing?
Or maybe my brain is just wired weird, cause even though I know in most cases "Sean" is pronounced "Shawn", I still read it as "Seen". I think this might stem from the fact that one of the first Seans I met actually did pronounce his name "Seen" and not "Shawn".
This post brought to you by my rereading of the book
Urban Shaman by C. E. Murphy, which brings up both of those names as well as some other names with weird pronunciations.