Mine declined an offer have me skip K, declined an invite for me to participate in the gifted pull-out in elementary (I self petitioned in junior high) and took very little interest in my high school classes.
My situation was the opposite of Wyldkat's.
I grew up in one of those places where athletics rule and my parents were very supportive of my athletic pursuits. I think it was more socially acceptable for them to be openly supportive of sports than academics. Nonetheless, I had a stable home and they modeled responsible behavior. There was some uneven support but no harm done. We turned out alright.
I do have a funny/sad memory of being an gifted kid. I remember putting down a book I liked to go watch sitcoms I didn't like so I could know what the other kids were talking about. I actually got teased for not knowing about Steve Urkel!