I remember, back in the Good Ol’ Days before HIV, I went to the International Airport in New Delhi, India for a live-virus innoculation for Yellow Fever. The 20 dose vial had to be expended once it was open, so there were 20 people standing in line, waiting for a shot.
The doctor flipped the plastic stopper off the top of the bottle, dipped in the needle, withdrew the medicine, and injected the first guy in line. He then proceeded to use the same needle and syringe to inject the next ten people in line, before he came to me.
He took one look at my white skin and my US Passport and calmly took the needle off the syringe, put on a new one, gave me my shot, and proceeded down the line.
Such were the Good Ol’ Days!