Unknown "gentleman" left rather hostile
message that someone I've never heard of needs to call him back immediately or talk to an attorney.

YEP!  Same crappola from this caller.  They were looking for my son and knew I was his mother.  I would not give them any details but it makes you worry for a few minutes that something is wrong until you do the research.  I would recommend anyone who gets one of these calls to not give any info and know that it is a scam.

These people call over and over and over non stop asking for someone I don't know about some other person's debt I don't know. I tell them OVER AND OVER AND OVER they have the wrong number stop calling and they call and call and call and leave message after message. They're a trashy collection agency with RUDE PEOPLE who won't take you off the list. I have asked nicely, meanly, firmly. They don't listen. They're probably billing their clients by the hour for calls to people completely unrelated. RIDICULOUS. RUDE! TRASHY! HARASSMENT!

This is bogus. . this is a scam company trying to get you to commit to paying off a debt that they say you owe.  We did NOT owe what they were collecting for.  In fact, they couldn't even tell us which of the three companies we owed.  

They called. I did not answer. I don't answer calls from numbers I don't know. They left a message stating they were Oxford Law For may and they were attempting to collect a debt. The person didn't give his name nor did they say who they were calling for. Needless to say, they have been put on my reject call list.