all of the above except #5 and only because I think our former school had a serious no bullying policy. We used to go to the same school as SDMom and even though her Mr B was the focus of some bullying, it wasn't because he was smarter...
Now we homeschool so we are *mostly* removed from the environment where giftedness is even ever brought up. THey don't even do regular testing in our homestudy program, so it's not like kids are getting tests back with scores on them...
For my own life...all of the above. I was even called "Brainiac" in college and my vo-tec nursing program. Early in life, I learned to flip my tests and homeworks over real fast so others wouldn't see...and the last one actually caused me physical stress as a child...
We have yet to find Butter's "tribe", though she doesn't seem particularly bothered about it at the moment...