Bank your own blood, otherwise it’s always a crapshoot
Doesn't work that way from what I've heard. you don't get your own blood back, you just get credit for blood - anyone's blood, when you "bank" yours.
Unless you want to go Kramer and keep it in Tupperware containers in your own freezer.
You make a good point, how would one go about doing that?
Ofcourse the gays will lie and say they never had sex in a year probably after they screwed 5 guys the night before.
I have heard horror stories of folks getting diseases in the US including AIDS through blood transfusions. I for one would like to have my own blood on hand and not chance getting AIDS, Hepatitis or any other disease for that matter.