This is no word of a lie...
I run a site which is popular, lots of members, lots of kids, lots of hackers, now, it comes a time where they threaten to ddos my servers, (i own three of them) anyways, i get emails and so forth threatening me if i do do this or that , they will flood.. now, allot of these people tend to forget that i can follow their ip and email.. so here is one example.
during a ddos attack one day, i had an email from a member stating along the lines of "you got owned, bla, french own u"... to my surpise, i figured i would google his email, and what do you know, it returns to a websites contact page.. oh he owns a webpage

!!
I do a whois on the webpage, get the phone number, i asume its a fake but i call the person, mension who i am, where i am from, and bla bla bla, this french person says sorry, and guess what, DDOS stops.
^__^