hanky as a gift

I was like 9 years old when I heard about the superstitious belief about a handkerchief. That is, to never give a hanky as a gift because sooner you will make the receiver of the gift cry for whatever reason it may be.

Last May, I and my friends went to Boracay. And I never thought of anything to give to my then-boyfriend (he's an ex now). I saw this handkerchief made from sarong-cloth. I never even doubted in buying it. Except that it was affordable, it can be used by my boyfriend anytime he wants and nobody will know it came from Bora.
After a month, I broke up with my boyfriend. He came up to me asking why. And he cried.