HIV is a fragile disease which cannot be transmitted outside of it's host. Unprotected anal/vaginal intercourse, sharing needles, mother to child. You're good to go.
hiv can't live that long outside the body. no risk. and i'm pretty sure the barber changed blades. he can get in a lot of trouble if he doesn't with the health inspector.
jus askin can hiv be transferred if there is blood in razorr from previous visitor who is hiv + just askin ..