Am I agnostic, atheist or something else?

[pocketfours]

For example, I don't believe that a god exists, and I don't believe it can be proven one way or another, so I am an agnostic atheist.

How can anyone think something can be proven beyond any doubt? Scientists, with the exception of mathematicians, in general don't deal with absolutely irrefutable proof so why should we?

If we have absolutely no reason to believe that a diety does exist and we don't care about it, then why should we be considered agnostic?