Your Life...
Is like a soap opera.
Who needs to watch TV, as long as you're around?
Thanks for all the entertainment...
NOW !!!!
Let's get serious !
You have to change messengers.
If it's that frigging easy to continually get into your MSN, how could you possibly ever trust the system again?
You need a Yahoo and Google messenger, then a secret MSN that you share the address with a few select friends who do not have Google or Yahoo, and who you would like to be able to chat with.
You can make a form letter in "Word", writing to all your contacts, asking them if they use a messenger, other than MSN, then add all those contacts in the approproate Yahoo or Google messengers, and for the few who use only MSN, give those people your new secret MSN account, and put one of those long passwords & secret questions, like MrMike suggested.. something like "IOnlyPerform69sWithLargeIguanas" and then, and only then, will you be able to sleep well again...
Finally, there is a generic messenger, I beleive it is called Trillian, that you could use to chat with all, regardless of which messenger they use.
I don't have the details, but could get them for you.
My nephew uses it.
From what I understand, you open it up and it signs you into all of your messengers, so you can chat with someone on Yahoo and MSN, at the same time, from the one messenger system.
You can Google more information about it, or get in touch with me and I'll get my nephew to send you the details.