Indeed. After all, my father was a complete atheist, but he still liked yelling "GODDAMITT!" when he stubbed his toe or anything like that...

He would also say, "JEE-ZUSS!" (with heavy emphasis) when really surprised or astounded by anything. This, despite the fact that he really had no interest or belief in Jesus whatsoever.

So there you have it. Both God and Jesus turn out to be quite useful for the average atheist, because they give him strong words to use when under great stress...and also they give him something not to believe in, and then he can feel smarter and better informed than people who do believe in things like God and/or Jesus, and everyone wants to have a few things like that, don't they? ;-)