break my wrist

i want to break my wrist. so i tried dropping my heavy textbook spine down on it many times in a row, and absolutely nothing happened. but i’m also kind of scared to do it because of the pain. i’ve never broken anything before! :/

any ideas?

ive heard these:

1) smash heel of hand on cement
2) put arm between legs and snap it that way
3) with a hammer.. um, no.

hehe. thanks