"I thought that was a girls name?
Nope---just Irish. I grew up with a guy named Shannon, and he was the toughest mf'er in town."
My brother is named Shanon and he too is the toughest SOB around.
Prehaps it's a "Boy Named Sue" thing . . . but I never thought of "Shannon" as a girl's name at all until I left my hometown and met a girl named Shannon. Then, of course, she became instantly un-attractive, even though she wasn't, because she had a "boy's name."