Here's another one that gets tossed around a bunch and some times people do not have a good answer for it or argument against it.
"Well, I have FAITH that god exists and that's all anyone needs. Why cant you have FAITH?"
I added to it a little but it's the same idea. As an atheist you will find yourself being villainized for not having FAITH when all of their other points have failed you will be thrown this curve ball.
Ask yourself, what is faith? Does it make sense in this context?