Kenway - Groin kick

‘Hey,’ I shouted. Wilson swung to see me, and though he was bigger than me, and far uglier than me, I’d just seen him hit a child and my blood was up. It’s not an especially gentlemanly way to conduct a fight, but I knew from experience both as giver and receiver that there was no quicker and cleaner way to put a man down, so I did it. I led with the knee. My knee into his bollocks, to be precise. So quick and so hard that where one second Wilson was a huge snarling bully about to meet my attack, the next he was a snivelling mewling heap of a man, his hands grasping at his groin as he landed on the floor.

Assassin’s Creed Black Flag, Chapter 5