Obviously, the guidelines are there for the people who will receive your blood. I, too, am not allowed to give blood (not that I mind--needles freak me out) because I was in England for 7 years and OMGGGGG! could possibly have Mad Cow disease. I understand that is must be frustrating because (kudos to you) you DO want to give blood.

However, I was not aware that the form did not ask if one has unprotected sex. I wonder if that would be delving too much into peoples' personal lives if the form had that question? I can definitely see, though, how that question is a valid one, especially when donating blood.