Not a good idea to tell people.
You’re going to beat them up, harm them ect.
Also telling someone you’re going to kill them.
They just might believe you.
Then protect themselves.
I went downtown in the city where I grew up and there were people screaming in the street. Just ranting. My brother asked if that happened where I live. I said “No because they would be looking down the barrel of a gun”. Be polite or you risk getting shot.
I am 64. Any threats to me will be treated as possible death and I will react accordingly.