tyb
A man comes into a bar. He has a knife at his waist. Bartender askes him :"Who are you?"
"I am Knife Bill." the man replies.
Another man enters the bar. At his waist he carries a gun. "Who are you?" the bartender asks. "I am gun Bill." is the answer.
A third man enters the bar. He has a third arm growing from his waist. The bartender looks at him. "And who are you?"
"I am Tcherno Bill."