Do they call it “suture yourself.”
NICE!!!
No way can I come close to that diddy, but I do recall a few odd tidbits.
Werner Forssmann In 1929, he put himself under local anesthesia and inserted a catheter into a vein of his arm. Not knowing if the catheter might pierce a vein, he put his life at risk. Forssmann was nevertheless successful; he safely passed the catheter into his heart.
https://en.wikipedia.org/wiki/Werner_Forssmann
In the early 1900’s Edwin Boring mapped cutaneous sensation in the human body. He used himself as the subject. Yes, he did map sensation in the penis.