Ever collide with a deer?

had a friend of mine hit one on a motorcycle somewhere in iowa he said he was doing 60 plus when the deer jumped from the ditch line a hit him directly and knocked him off his bike, he said he was banged up a little but felt ok . so being on vacation at the time he picked up the bike which slid down the highway with no mechanical damage and drove it 3 hrs back to the hotel ate dinner and drank some beers went to bed woke up next morning couldn't move he had broken his neck. i saw him with a halo on screwed to his head when i asked him what the hell happened to you?