[jpark]

Here's one tragic result of forced gender assignment:

http://en.wikipedia.org/wiki/David_Reimer

plus anecdotes from friends and family:

""When I say there was nothing feminine about Brenda," brother Brian Reimer later recalled, "I mean there was nothing feminine:

She walked like a guy. Sat with her legs apart. She talked about guy things, didn't give a crap about cleaning house, getting married, wearing makeup. We both wanted to play with guys, build forts and have snowball fights and play army. She'd get a skipping rope for a gift, and the only thing we'd use that for was to tie people up, whip people with it. She played with my toys: Tinkertoys, dump trucks. This toy sewing machine she got just sat."

http://www.singlesexschools.org/reimer.html