My uncle had also taught me how to grab a dog by the flesh on the sides of its neck and under the jaws. You need a good grip if it’s a big one, and you’ve got to get it just right. I had no real choice at the moment. If I tried a kick and missed it would probably take off my foot.

My hands shot forward and snaked upward and I braced myself when we met. I was sure it outweighed me and I had to meet its momentum as well.

I’d had visions of losing fingers or a hand, but I got in under the jaw, caught hold and squeezed. I kept my arms extended and leaned into the impact. I was shaken by the force of its lunge, but I was able to maintain my grip and absorb it.

As I listened to the growls and regarded the slavering muzzle a foot or so away from my face I realized that I hadn’t thought much beyond this point. With a dog, you might be able to bash its head against anything hard and handy; its carotids are too deeply buried to rely on direct pressure to take it out. But this thing was strong and my grip was already beginning to slip against its frantic twisting. As I held its jaws away from me and kept pushing it upward, I also realized that it was taller than I was when extended along the vertical. I could try for a kick at its soft underside, but I would probably go off balance as well as lose my grip, and then my groin would be exposed to its teeth.

But it twisted free of my left hand, and I had no choice but to use my right or lose it. So I pushed as hard as I could and retreated again. I had been looking for a weapon, any weapon, but there was nothing handy that would serve.

It lunged again, coming for my throat, coming too fast and high for me to manage a kick to its head. I couldn’t get out of its way either.

Its forelegs were level with my midriff, and I hoped that my uncle had been right about this one too, as I seized them and twisted backward and inward with all of my strength, dropping to one knee to avoid those jaws, chin lowered to protect my throat, my head drawn back. Bones popped and crunched as I twisted and its head lowered almost immediately to attack my wrists. But by then I was already rising, thrusting forward, springing up.