Get his e-mail password!

I realized that what I'm about to ask, may challenge some people ethically. This past is not for them. How many of you have had success getting into your SOs e-mail without their knowledge or permission? Not the main e-mail they give to the clerk at the store so they can send coupons, I mean the real "secret" e-mail. if you were successful, how did you go about it? Did you have to use a key logger, or are you a really good guesser? Also $40 bucks to the first kind individual to help me brute force "my old hotmail account, that I can't remember the password to"