I (21f) am 5’5" and skinny. I recently attended a self-defense class, and there I was tought how to use a pocket knife. And as I have some male friends 6’5"+ tall, I thought that that height actually makes your belly particularly vulnerable in case of a fight (in comparisson with short people):
- a short person’s shoulder height is around the same level as your belly making it easier to stab/hit;
- your belly is proportionally a larger target.
And in general, if a 6’5"+ guy stands in front of me with his stomach released (even if he has just a bit of a belly) it feels like having an exposed, large and squishy punching/stabbing bag right in front of me, into which, if needed, I can easily harshly and deeply plunge anything straight away.
I also practice historical fencing (rapier) and most of the times I stab tall opponents into the belly - my favorite thrusts are ducking counterattacks when I duck while they attack, go low and impale a tall guy’s unprotected belly right onto my rapier.
What do you think about it?


In most altercations, the first to use violence is the likely winner. Unless you walk around with a knife in hand all the time, it is unlikely to make a difference. Even then, you must always be prepared because even holding a knife, you have blind spots to be exploited.
I am tall with broad shoulders for my height. I think of my size as being an easier target for a bullet, though in practice I know that difference is rather insignificant. I look at displays of strength and force as weakness and fear. Even a kid can pull a trigger.
I primarily fear groups of stupid people, and the intelligent. I am probably biased because I am too large and intimidating to be worth the effort to fight, and have little that anyone would want. No one can fight off several attackers at once. The human propensity for dogmatic stupidity and confirmation bias is horrendous. On the other hand, I fear the domination of the intelligent, because the human capacity for cleverness is beyond the scope of anyone’s ability to counter.
In pretty much every situation, you are safer if you run. Instead of working on fighting back, having sure footing, agility, and confidence in your ability to run faster and further than any opponent is far more likely to save you. Your stride is much shorter than mine, but you are likely to be able to change directions faster than me and my momentum. Like in american football, I must increase the buffer distance before engagement when facing a smaller person in order to prevent them using my momentum against me. When I am all out in pursuit, it is the moment just before contact that is critical for awareness, confidence, and the agility to change directions quickly that will prevent me from catching you. It is also a mistake to assume I will tire or lack endurance to chase. You must have a stronger spirit than your opponent and the confidence that you can out agility them every time they try. There is no fairness in this type of altercation. I know that is scary. It is always better to turn to flight first in the fight or flight mechanism. Then come back with your fight when you control more variables.
Why would I run from you and increase the risk of you catching and grabbing me, when I can fight back by quickly pulling the knife out of my pocket and (since I’m sneakier, a smaller target and also have swordfighting skills due to fencing) just plunge my knife right into your belly up to the hilt (or even quickly slice your belly open to ensure you’re incapacitated and represent no threat to me)?
Because I will grab your hand. You could hurt me in other unique ways due to my chronic injuries. At the same time, I have spent the last 12 years in severe and unrelenting pain. As a former cyclist racer, I already had an enormous propensity for pain. Now, I’m nearly impervious to it. Nothing you could do would stop me until I lose consciousness. I don’t say that to be mean or a troll or anything. At your age, it is hard to fathom how perception of pain changes at double your age. Like in militaries, the vanguard goes last (older experienced people). We are more susceptible to injuries in some ways, but make up for it in experience and particularly in capacity for pain. Similarly in cycling racing at the amateur local levels, the masters races are often the fastest and most brutal. When you’re older, you know your real limits far better than the voice in your head screaming for you to stop.
I feel like my spine has a long sword shoved through it top to bottom all the time. I hurt in places and ways no human should be aware of their existence. When you are young, you likely imagine stuff like this is impossible; that everything can be fixed or means death. Such is not the case. It is possible to suffer terribly in ways where nothing can be done. I actually appear weaker in my hobbling and caution, trying to avoid cycles of injury, but under that façade, I am still capable, and mask the underlying ability to handle any pain short of death. My margins are on that line all the time. Even since my broken neck and back, I have broken bones riding a bike for physical therapy, and I just rode home with them and while bleeding rather seriously just out of my stubbornness and desire to say I have done so. The swelling actually puts pressure on my spine in ways that make my constant pain go away. Stabbing me, might actually help make me much stronger.
Well, how will grabbing my hand help you, when my blade is plunged into your belly? How are you going to hold my hand exactly at the position I drove the knife into your stomach? And why you think I cannot just really quickly slice open your belly, even before you grab my hand? And with your gut sliced open its not long before you pass out as well. So, if we’re talking about self-defense I can pretty realistically disembowel you actually.