Washing blood with blood

"Washing blood with blood", I misheard as "laughing at digital terrestrial broadcasting". No, my ears must have transmitted the sound of "
Washing blood with blood" to my brain. The accident must have happened while it was passing through the auditory nerve. My auditory nerve is an accident-prone area comparable to the "
Ikebukuro Mutsumata Intersection
", so I mishear something at least three times a day. Those who laugh at digital terrestrial broadcasting will cry over it (?)

↑ Speaking of intersections

In the first place, even though I understand the meaning, I can't stop imagining what would actually happen if I carried out "
washing blood with blood" literally, and it makes me feel faint. I once fainted just from turning thoughts over in my head, so this time I will think while clearly writing it down and illustrating it.

First,
we need the blood to be washed (Blood A) and the blood to do the washing, or in other words, blood as a cleaning agent (Blood B).

And, since it's hard to imagine intentionally washing something clean,
I will consider Blood A as "contaminated" and Blood B as "clean".
※ Let's skip the digression about "what about pre-washing baby clothes?" today.

Since it means cleaning contaminated Blood A using clean Blood B, if we think about it using familiar things,

It's like this.
Dirty clothes should be washed, so they are Blood A, and detergent (and clean water) are necessary for washing, so they are considered Blood B.

However, it is a highly difficult technique to "wash a liquid with a liquid".
In the laundry analogy, Blood A is clothes, i.e., a solid, and only Blood B is treated as a liquid.
Washing solids is easy, but...

If you keep injecting Blood B into Blood A in some kind of container, and Blood A is washed away and completely replaced by Blood B, it's clean...
It's hard to say that, though.
There is a high possibility that contaminants remain in the container, and in the first place, a container that held contaminated material cannot be called clean unless it is put in an autoclave, and it is common to just discard it anyway...

For example, if Blood A is dried and crusted over, it is easy to create a situation where you wash it using Blood B, but
personally, "that's not what I meant," so it's a bit... no, I don't like it.
That said, if it is crusted Blood A,
if you can remove the crust using Blood B,
I think it's not impossible to say that 【washing blood with blood】 has been achieved.

However, as mentioned above, if "clean" means that the causative agent of contamination, virus, or bacteria has been eliminated,
after washing the crust of Blood A with Blood B, I would want to send the remaining "supposedly cleaned blood" to be cultured
to confirm whether or not "nothing comes out" in reality.
This is also true if both Blood A and B were liquids.

No, there's no end to it.
It's fruitless.

Conclusion: "Do not wash blood with blood".
For blood on fabric, please thoroughly perform first aid with "cold water".
"Wouldn't warm water dissolve the stain better?"
If you try to pour hot water on it, they will mercilessly harden and stay on that fabric.
They are really shameless, so please use cold water.

For stubborn ones that stay even with cold water, this is definitely the one.

My daughter brings home once a week,
indoor shoes that have turned black as if they had been to a battlefield, and they become clean.
Also, my smelly Airism becomes odorless if I soak it in OxiClean, so
it is a necessity in our home.

The following site is an "amulet for when the time comes", so I recommend bookmarking it.

I am writing this on Saturday, April 26, 2025, at 17:07, but
around 15:00, the moment my daughter and I went outside, it started pouring rain,
and as a result of sharing an umbrella mainly for my daughter, I am drinking coffee in a very stupid style with only my left side soaked.
※ My daughter is at ballet class

My left side was washed by the rain.