I always agree with your statement when people discuss it from a purely theoretical philosophical/moral standpoint.

But when it actually happens to you, as I have been violently mugged several times. Oh, would I push that button - pull that trigger and I'd rewind time so I can do it a few times over. Cathartic.

These little fuckers hide out in alleyways late at night and they've made a career of it. They do it so often they embellish their muggings with other bits like choking and mock stabbing or slamming people's heads against pavements. So fuck 'em.