Once a medical student writes a love latter to his classmate with his blood and says “Pls give me answer of thisâ€. A girl reply with answer the next day “ur blood group is A+â€
In india most of the person use Blood for love letters and more funny thing is they collect blood from laboratories , because there you can get it easily from samples...LOL
Of course I am an Indian , and I know one of my friend used that trick. He wrote the latter with that blood and put a bandage on the wrist, that he took the blood from the wrist....LOL