Here is the thing. I borrowed my neighbour's laundry card one day. I really appreciate his help and I feel bad about judging his health condition based on his appearance. But his condition didn't look good when I saw him and there was some weird smell in his suite. So I couldn't stop thinking about he might be a drug user. I didn't thoroughly look at the card to see if there was any blood on it. And I got a blister on my finger and I squeezed it, so it became a wound. However, I can only squeeze out clear fluid from the wound, there was no blood from that wound, but it was uncomfortable when I applied iodine to it. The diameter of the wound is 0.1-0.2 cm, and the wound got into contact with the card directly. I am not sure whether this can be considered as direct contact because he just handed in his card to me, the process was pretty fast. I washed my hands after returned the card and applied iodine to the wound. So I am wondering if there was his blood or other body fluids like semen on that card, am I at high risk of HIV infection?