This guy called me and said he was looking for [wierd name].   I told him he had the wrong number.   He verified the number he dialed and I confirmed it.  He said "that is the number we're interested in" and that he was with a sweepstakes company.   I told him this was my work phone and I wouldn't be humoring him.   This seasoned vet was ready for it and explained that he understood but this wouldn't take long.  I told him no I was not going to hear him out as I had something to attend to.   He pushed back (professionally but forcefully).   So I hung up on him.   Take a hint jerk!