I think I'm distantly related (though cheating) to the English teacher I had freshman year of high school.  However, I don't think my parents want me to know this (for some reason... I mean, it can't really be conflict of interest in school anymore since I'm a junior in college now).
However, I don't really know if/how to ask about it.
I'd be related to her on my dad's side... but...
While my dad likes to go on and on about really fond memories of his childhood, I know he had a lot of really traumatizing stuff go on.  He's now an alcoholic, partly because he has a genetic predisposition (I think... Native Americans are known for being prone to alcoholism, my dad's great grandma was a full blood Chippowea(sp?)), partly because he liked to party too hard in college, and partly because he tries to use it as liquid therapy.  I love my dad very much, and I understand that there was some REALLY intense stuff going on in his childhood and I don't want to mess with brining up painful memories when he's not ready (his childhood was kinda messed up... my grandpa wouldn't let him do a lot of things he was interested in, like play guitar, my dad seems to kinda have been the "runt" of the litter... despite the fact that he was a national champion swimmer, my grandma had some intense emotional disorders, my grandpa slept around a lot...).  So, I'm hesitant to bring it up.  But what makes me wonder is:
I have a half-aunt (my grandpa + some random woman in our town he was two timing my grandma with), who is an amazingly nice person and looks almost identical to my English teacher.  We visited her last Christmas when my (full-blood) aunt was in town, and my aunt (in a night of intense talking and remincising with my parents) was listing families in LO that our family knew, and she mentioned the Proudleaves (not the name of my teacher, changed to protect the innocent lol), then my parents cut her off and started being all hush hush.  I think she mentioned something about possibly being related to them.
Flashforeward to today: I was looking at pictures of my half-aunt's daughter's wedding (which reminded me of how ridiculously rich my dad's side of the family is... despite him growing up in a house that was more a shack than anything else, and my grandma and great grandma being raised on reservations) and I saw a picture of my half-aunt that I could SWEAR was my English teacher.  Which just reminds me of how much I think I'm related to her.
This has been bothering me for a while, mostly because of the way my parents hushed my aunt so quickly when she mentioned it, so I'm also curious WHY my parents won't let me know (seeing as I've known my half-aunt, granted, not too well, my whole life).
I love my parents very much, and they are great people that I'm glad I'm related too (even if they can be embarrassing and make me mad sometimes), but we don't have the best communication about "uncomfortable things" (like this, the fact that I have sex... which I'm not sure if they know about, other aspects of my personal life, some of my friends that are amazing and good people but are in like the porn industry, for a while my tattoo, they still don't know about some of my piercings, etc).  But I'm not sure if I should ask them about this, or how to go about it.  I've considered asking my aunt, but I'm not sure if that'd be good, since I'm tired of keeping secrets from my parents/going behind their back for fear of their reaction to stuff, especially stuff that I've grown up with the idea of "we just don't talk about that sort of thing".
(sorry for the long post, but hopefully it breaks the chain of *insert romantic relationship problem here*).