I'm sorry, but your post shows an enourmous lack of knowledge about how hiv is spread, and an irrational fear of the virus.
If you don't share needles, give unprotected oral sex to a man or have unprotected anal/vaginal sex, you will not get hiv.
It does not lurk around in places waiting to infect you.
Please, I urge you to educate yourself. Please visit these sites:
aidsmeds.Com
avert.Com
aegis.Com