Had to look this up, remembered it from 1996 when I lived in Washington state. A mt biker in Olympic Nat'l Park, possibly world's luckiest human that day.
When the cat came at him, he started running backwards, he said. He figured the cougar weighed about 80 pounds. The cougar kept coming, then leapt at Anderson's chest. Anderson fell to his back, locked his legs around the cougar, flipped over and buried his thumbs in the animal's throat. He kept the front paws pinned back with his forearms, he said. He had the cat pretty much subdued, but it wouldn't die. "I was watching him go in and out," Anderson said. "We were at a stalemate." To his surprise, the cat made no noise while it struggled, Anderson said. He, however, was shouting for help.After about two and a half or three minutes, the cat still wriggling, Anderson got his thumb in the cougar's mouth. He just smashed it," Anderson said. That gave the cat the edge. As Anderson lost his grip, that cat's claws went into a whirl, ripping at the thick, baggy sweatshirt. Some of the claws caught Anderson's chest. "He put a lot more holes in my sweatshirt than he did in me," Anderson said. Not wanting any more, the combatants exploded away from each other and ran. Anderson ran down the trail, grabbed a baseball bat in his van and returned for his bike. The cat had stuck around, still looking for food. "He carried off my bag with four peanut butter and jelly sandwiches in it," Anderson said.
The full story here:
http://cycling.ahands.org/bikecougar.html