"It's important to realize, though, that all immune responses to a viral infection generate a mixture of neutralizing and non-neutralizing antibodies. That's one of the things about the immune system - it revs up production of a wide variety of antibodies, selected from the untold billions of them circulating around in your bloodstream. Some of them bind to one part of the pathogen, and some to another. And they bind in different conformations, sticking to different parts of the surface of the invading virus from different directions."
https://www.science.org/content/blog-post/antibody-dependent...
https://nbatitlechase.com/wp-content/uploads/2021/11/PHOTO-A...
And probably a lot more in fines. Surely finding a less than ethical nurse or technician to bribe would be easier and possibly less risk since they can just decline before you give your name. How inebriated would a nurse have to be to think a prosthetic arm is real? I suppose if one were to try this, at least give it the old college try and put that arm in a sling and cast so you can't be expected to make a fist or move your arm. [1] "Inject my broken arm since I can't use it anyway". Remember to warm it up.
[1] - https://www.youtube.com/watch?v=iaSUOFleNRU [video]