Hi,
I am from India. I went to this shopping mall that stocked Swiss Army knives and accidentally nicked the back of my finger on a knife that was shown to me. Obviously, this was a piece that is generally shown to all the customers. The nick is really really small, like half a centimeter and was really surface, but there was a drop of blood.
Now I am really paranoid if I might have contracted HIV as it was a really big mall and there might have been someone who might have nicked their hand on the knife..
What can I do?