A local retic breeder that had some 14 footers and longer had been to the ER a few times. He told me that the bills for the bites ran into several thousand dollars each time.
The last time I saw him he was keeping some Wild Caught (WC) full grown Mainlands. One bit him in the face for the anchor and did a full body wrap. The guy passed out and fell to the ground. Fortunately his mother was there and was able to unwrap the snake and take her son to the hospital. I don't remember if she performed CPR. Maybe so, because he had told me that his heart had stopped.
Last I heard, he was still keeping a few WC Mainlands.