A story I've told here before. I had donated blood many, many times during my military career. I even organized campus blood drives when I taught college ROTC.
When 9/11 happened, myself now retired, I rode my motorcycle to the nearest blood bank. I sat down for the screening, and the guy at the computer in a cubicle asked me questions. He got to the one if I was homosexual. I don't lie, I'm not ashamed, totally out. I answered yes.
"No, you don't understand. A homosexual is someone who has sex with other men."
"Yes, I'm a homosexual." I think my leather Harley jacket and helmet may have thrown him off. I could see him changing computer screens, for a different series of questions, clearly flustered. I don't think he'd had that reply before.
"Have you ever had sex with a man?"
"Have you had sex with a man in the last 6 months?"
He said he needed to consult with his supervisor and left. When he returned a bit later he started typing away at his computer, and finally turned to me.
"You are barred for life from donating blood in the United States. Your Social Security number has been entered into a national database. If you ever attempt to donate blood anywhere you will be turned away."
"Do I have have any appeal options?"
I have never donated blood since. Despite my blood being a rare type, and completely infection-free to this day. I've never had an STI, nothing that would make me ineligible. But I cannot donate because I'm an admitted gay man. That's the United States for you.