Funny story about blood. I have a moderately rare blood type. I went in while in my 20's to do a good thing and donate. So, they sit me down and ask me the 1000 questions. Then They go down the childhood diseases list. "Oh, yea I had XX when I was about 10." XX was so bad at one point I was on a lot of medication, some of it was just out of experimental; my name is in a medical research thesis somewhere out there. Oh, we got to test for that. They ran blood in a machine and then dipped a strip into the non-plasma part of the blood via. The strip turned purple. The nurse went, very close to "well shit son, never give blood. Ever." Thanked everyone and walked out with the buddies I took to the Red Cross. Three weeks later I get a phone call. Explain the situation to the lady on the phone, all is good. Three weeks later, another call. Two weeks later, more calls. Finally I have to call the blood center to either take my fucking blood or stop calling. The calls stopped for about a year, then we went through the whole thing again. I had calls until I changed phone numbers 5 years later. It's nearly 30ish years later, and now that I am thinking about getting tested again and signing up for the full organ donor and bone marrow donor lists, but man, the ghouls are aggressive.