It seems that this man had been reading recently about the advances in cloning, and decided to have a clone made of himself to do his work.
For years it worked perfectly. His clone took care of all his patients, and he got to relax. However, the clone began to have some personality disorders. it would insult patients, and treat them very badly. It got soo bad that business was suffering. The doctor decided that he just had to get rid of the clone or loose his business.
So......one morning on their morning jog.... they jogged right over a bridge. The doctor pushed the clone over to his death.
The doctor again began seeing his old patients, and things were going exceptionally well, until a fisherman "caught" the dead clone body in the river. When the police found that the real doctor was still, in fact, alive, and that this was a clone, they didn't know just what to charge the doctor for doing wrong. After much deliberation, they decided to charge him for... Making an obscene clone fall.