i think it is absolutely rediculous 
i am MUCH more careful when it comes to having sex than the majority (if not ALL) of my straight companions. The fact that I get rubber stamped as a potential risk just because of my sexual preferences is rediculous. 
I went to a blood donation centre within weeks of my 18th birthday not knowing of the regulations. I was a virgin at the time and yet just because I had given a BJ to my only BF in the past it meant I couldnt do anything. That has nothing to do with "specific behaviours". Imagine my embarassment as i had to run out of that room...

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