What is with us ladies??? Sounds like we all break our butts!! I was about 9 years old when I cracked my tailbone. I was on a swing set my grandpa made for me out of trees he cut down. This swing set was HUGE and you could get really high up in the air. I jumped off the swing while it was high up in the air and landed on my butt on a horse shoe!!! A million in one shot that my rear-end found that horse shoe in a field of tall grass! We had a horse shoe pit nearby, so I should have looked the area over but I was only 9 and didn't think that far ahead!!