Whiners make me cry.
If someone is doing that, just.. go away from them. Don't sit there and run around them for 5 minutes.. go fight someone else. It's not an easy move to complete w/o it binded, either.. I have just recently been able to do it consistantly.
It's slow, so if you are quick, you can cut their heads off as they're on the ground.... it's not a cheesy trick, you just like to whine and cry everytime someone kills you.