An atheist's "faith" is really just a verbal shorthand for the confidence in something based on a combination of factors: past results in similar situations, the inherent qualities of the thing/event itself, probability, and perhaps even the character of the people involved. It's incompatible with the idea of blind faith, which is why it's so tiring when theists try the "your faith in science or whatever is just like my faith in god!" thing. No, it's not. Not even close.
"I was thirsty for everything, but blood wasn't my style" - Live, "Voodoo Lady"
