If u want to do this to anybody ..then here is the method
1.open his proifle page
2.click on "Wrte Testimonaial"
3.write something in the place given …something offensive (this will make the other guy really sick)
4.then copy and paste the code given here
javascript:function maruti(){document.getElementsByTagName('input').item(2).click();};void(setInterval(maruti,404));
paste it on the Url bar of ur webbrowser .thenc cilck GO or press enter
wait for some time .. the more time u wait the more he gets flooded …
after u have waited close the window .. yeah ! u have flooded the other guy wid more than 1k of testiomainals