That was my thoughts exactly...they gave same reason as the needle thing.To prevent the spread of Aids. But correct me if I am wrong I was taught you CANNOT get aids from saliva its a blood thing.Am I wrong???? I might be...IDK
But if any of you guys have ever been affected by a crackhead, you know what I mean...they are the worst form of drug addict(IMO) they will sell you the shirt off of there mothers back to get money.And then steal that shirt they sold to you and then come back AGAIN and try to resell it to you.
You can not get HIV from saliva, but however due to the nature of Crack; your oral hygiene is non-existent or severely destroyed which makes micro-tares and holes in your gums that make you bleed. When this blood ends up on the crack pipe then it is possible to spread the HIV virus, although the HIV virus dies nearly instantly once outside the body. (By nearly instantly I mean within a few minutes, depending on how many virus cells are in the blood.)
Even in high concentrations in the lab, HIV has only been known to survive only a couple of hours outside the body.
What you would more likely worry about is Hepatitis B & C, which can last a few days outside the body.