Very bizarre interaction. They called me, I answered, they hung up.

I called back, and a grouchy old man started lecturing me that he didn't call me and that if I would take a look at the number I had called, it would not be the same as the one that called me. This is clearly impossible given I had clicked on his number to call back? Anyways, I asked who he was, and he told me that it was completely irrelevant. Scam? Who knows. Some people just need to chill tf out.