Sadism and Masochism

I have to do a survey. Please answer the following:

1) Have you ever been Sadistic? (pleasure on hurting people)
2) Have you ever been Masochistic? (pleasure of others hurting yourself)
3) How old were you when you been Sadism and/or Masochism?
4)How long did it last?

Be truthful you guys!

i once broke up with a girl, not because i didnt like her, but because i wanted to see if it made her cry.