Or stop them in their tracks! 
Ha! well well Lord Dude Elon Musk @elonmusk. 
In 1984 I actually did STOP an attempted
black axe-murderer. 
He came to the family home.  I put myself between him and my now passed mam and my now passed and at the time pregnant sister (she had a son, 3 lives saved) 
After some aggro and chopping I got the mong out of the area... him with a deep leg wound ...😎