<human>: Can you condense the text into three sentences or less?

How has your kindness/compassion to another human/animal gone wrong and bitten you on the ass?  

This is probably not a good example, but this happened today. 

Driving home from work, I noticed what I thought was a mangled pedestrian on the side of the freeway. I stopped my car reversed up the emergency lane and ran up to the person to help.

I closer inspection I noticed the guy laying partially under the barrier. His bag and shoe were next to him. He was twisted up and lying in a puddle of fluid. I thought that he had been hit by a car as his shoes were off and were laying next him.

He was unconscious but breathing so I tried to wake him up without moving him tomuch. While I was standing over him I noticed a strong smell of alcohol. I had a look around him and spotted a freshly broken bottle of cheap sherry. 

He eventually came-to, still pissed out of his mind and started mumbling stuff. I checked over him for injuries and determined that he in fact had not been hit by a car, but had fallen over the barrier while trying to cross the freeway. The puddle he was laying in was piss. I decided to call the cops as he was not in need to medical attention, but needed to be moved somewhere same. I stayed by his side to make sure he didn't stumble into the road again.

While I was waiting for the cops to arrive, the pedestrian, starts babbling off about random stuff. I try and keep things civil, but he starts getting restless. Eventually he changes his story calls me a racist and accuses me of hitting him with my car. He claimed that I drove from the freeway up a grass verge, and hit him on the onramp. He claimed that I would go to jail and he would sue me. I told him that he better save his story for the cops; he then proceeded to cry claiming that he was now crippled, pointing out a small cut on his knee from when he face-planted.

When the police arrived, I told them the story and they just laughed and thanked me for waiting with drunk.
<bot>: Played the good Samaritan trying to save a man from being run overr, and was insulted and falsely accused by the 'victim', claiming I hit him with my car. Cops loled.