He’s right. I kept the wound open and completely bled out. Lost all of my blood. But it’s worth it because i didn’t get Tetanus.

Did you know you can stop rabies by having someone chop your head off?

He’s technically correct - if you bleed fast enough for long enough, you won’t get infected by anything that needs a live host to grow.

Wait, why do I even need an immune system if the bloodletting keeps the bad spirits out anyway?

It‘s technically correct, if you prevent your wound from stopping to bleed, you won‘t get ill. That is due to the fact, that you‘ll be dead.