I pulled a Britney... I had cause, though. I used to have really long hair (down to my shoulders, and my hair is curly, so it was a bit longer when wet or if I straightened it). I kept my hair dyed bleach blond (my natural color is light brown, so not a huge jump). one day, I decide I want red highlights in my blond hair. so I get a friend to highlight my hair (this is the same person who had been dying my hair for like 3 years at that point).
turned out horribly. I ended up with like orange roots and blond everywhere else. it looked bad to the point where I was embarassed to be seen in public, so we decided just to dye my hair back to the blond that it was before we tried highlights. I don't know if it was too much too soon or what, but in the ensuing dye job back to blond, I lost a pretty big swath of hair
so I went to a barber the next day and had them shave it all off.
the hair never really grew back in (it did, but it's like abnormally thin) so I've pretty much kept my head shaved since then, except in the winter when I can get away with wearing a hat. I go to the same place... I just ask them to shave it with the #2 razor guard. $14; I usually just give the girl a 20 and tell her to keep the change.