Not really that funny -- a lot of people with Chinese (I think?) names also adopt an American name to make it easier for people to spell, pronounce, etc.

Yeah, my name is Kevin (Xi Zhao) Wang.

But the funny thing is that a slightly different pronunciation of "Xi Zhao" changes the meaning from (roughly) "western prosperity" to "morning bath".

Can confirm. I have basic Mandarin and I would have definitely thought of you as the guy named "take a shower" if you never explained.

I've been a member of a very traditional Chinese martial arts club for years. I've only ever known most people by their Chinese name and been surprised at times when I catch them being referred to by a Western name. Others use either inconsistently or are mostly known by the Western name, so it happens here in Australia too.