I received a call looking for a person that I do not know.  I have received calls from other numbers and other people looking for the same person.  The person that called me today had a strong indian accent and called me three times in three minutes.  
First call:  I simply informed him that he had wrong number and hung up.
2nd call:  I told him that I just told him that he had a wrong number and he does not need to call again.  He accused me of being the individual and started hitting his numbers on the phone.  I asked who was the caller, who he worked for, and why were they looking for this individual.  He refused to answer.
3rd call:  I informed him again that the number he has is wrong and he informed that he knows it is right.  
I will see if the creep will call again.