How to get rid of myspace stalkers

I've had this guy continue to send me messages and repeated requests to be "friends". I got another message today while a work study was in the office and she dared me to write back something mean. I thought I would try a different approach and see what happens. This is what I typed:

Im sorry but the only man involved in my life right now is God and he gets mad when I talk to other guys.

I think that will do it.