giving a little of myself

So it happens in my life that i come to owe a friend 10 maybe 20 dollars. either unemployed or between paychecks at that time i rarely have extra cash so it is likely i may not have the money to give them. I have found a fairly consistent and effective means of procuring this money. I donate plasma at biolife. So I am borrowing from friends, for alcohol, food, whatever ..maybe a dubie..then i pay them back by donating my livelihood, a part of me. Not even a byproduct of my body but something it uses consistently. I'm just lucky enough to be able to produce it fast enough that I can sell it multiple times a week.
Some say there are health concerns, some say there are not. Certainly it is not as if I am just as healthy not donating as I am donating for the business makes sure I am healthy on the days that I donate. Think about their position, they have a business based on people giving a part of themselves for a measly sum of money compared to what they get for it.
Certainly much about this is parasitic in nature. I give a part of my body for something in return. By the end I've given my plasma to put money in my friends pockets for alcohol in my veins. Isn't that a curious exchange. Plasma which is the fluid that separates my blood cells is rather indirectly replaced by alcohol in my bloodstream. Should I be worried about this? Is this the most unhealthy and common college practice amongst my friends?
And certainly there are people who donate at biolife who replace their plasma with much harder, fiercer, scarier drugs. Heroin, Meth. So how parasitic is this? And who is the parasite. The company who takes it from us? The things we acquire with the money we are given for our plasma? Is it our plasma? Is it us? I guess it all depends on the perspective on has on the situation.

my new parasite

so i broke my wrist and the best way to heal me up was to 'install' an external fixator on my left wrist. 2 pins are screwed into my hand and my arm, with a metal brace in between them. it will stay there for 8 weeks. during this time i have to take care of my parasite as it takes care of me. cleaning the pin sites, washing away the surgical dye etc..

it is an inconvenience, and thank god for me that i did not do so much damage to both wrists, for i would not be able to type at all. as it is my right wrist is in constant pain as i drag it across the keyboard, SHIFT is almost impossible, but it is nothing compared to the throb of the parasite on my left. I have pins drilled into the bones which i have spent my entire life protecting from injury, now i have willingly allowed them to certainly be weakened for the idea that i will be benefited in the long run.

this seems to be a classic host parasite relationship as i have spoken of in my previous posts. but instead of there being a drug involvement it is more of a health relationship, or fundamental relationship. Stepping back from the idea of sex as a drug in shivers and the actual nature if the parasite my own parasite is much like what was originally intended in the research. This metal bracket instead of replacing an organ has replaced a joint or in a sense what holds my wrist in place until it is strong enough to do so itself.
i essentially have a less sophisticated version of that scientists invention of a parasite... mine is inanimate, thank goodness.