There are different ways to look at this incident, depending on what you think about guns. If you are anti-gun, you will argue that the British gun ban saved Harrison's life. Otherwise, he would have been gunned down by this Beatle-hating nutcase, like John Lennon was. If you are pro-gun, you will argue that if Harrison had been allowed to own a gun, he could have shot or scared off the intruder and thus never come within an inch of being stabbed to death, as in fact occurred. Or, that if people are allowed to have guns, an intruder like this would never have attempted such an assault to begin with, knowing what he would likely face if he managed to get inside the house.