when you consider the existence of flying teapots you rule the existence of them out from the start. The same goes for dragons and pink unicorns. Nobody has a problem with you ruling these things out from the start. So why is it so wrong for people like me to rule out the existence of sky daddies from the start?
Here is the ultimate test. If someone said that they had heard a talking donkey would you laugh at them. I know I would and I'm sure you would to (unless you are the idiot who believes in talking donkeys.) Now most freethinkers and brights would be able to name several passages in the bible where talking donkeys are mentioned. As xians never read their bibles (or if they do they soon loose their faith) they won't realise this. But do you see where i'm going. Ruling out god and talking donkeys from the start and ignoring anything which contradicts atheism is the rational and thinking thing to do.
This might seem obvious however some xians just don't get it.