Atheism can be either dismissive ("I'm not interested in that") OR assertive ("there is NO God"). It depends on the person expressing the view. I've run into both of those attitudes from time to time. My parents tended more toward the dismissive, but my father would occasionally take the assertive approach.

Can't say I've ever given any thought as to the state of the Pope's scrotum... In fact...I'd sort of prefer not to even think about it...

NOW look what you've done, Musket! ;-D Gahh! Yuck! This is going to bother me all through lunch, I just know it.