Replying to I'm stupid

I was playing soccer at a high school with my team and i ran behind the soccer goal and in front of the football goal post. Then i was leveled by a 2 inch (stationary) diameter steel cable that stretched from the goal post to the soccer goal. I now have my skin torn and bloody form right above my right eye to right below my left eye. Just thought i'd let you know how happy i am to be alive today.
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If humans and dolphins are the only mammals on the earth that have sex for pleasure, do dolphins masturbate themselves like humans do?