Magic Forums

I found the birth certificate of someone I hate in a relative's house. This relative hates them too, and so do all of my known family members. I want to know if I curse it if it will affect this person? The relative which holds the certificate also received a condolences card from someone she hates too and knows it was just to rub salt in the wound. Will it have the same effect? Also how do I curse these pieces of paper? Any help will be welcome, as both of these people had a negative effect on the person in my family who has died recently.