You may be a fundamentalist atheist if....

(I have discovered this parody list at Tekton Apologetics Ministries. At last count, there were 276 points. Quite good for laughs.)

1. You became an atheist when you were 10 years old, based on ideas of God that you learned in Sunday School. Your ideas about God haven't changed since.
2. You think that the primary aim of an omnibenevolent God is for people to have FUN.
3. You believe that extra drippy ice-cream is a logical proof against the existence of God, because an omniscient God would know how to stop the ice-cream from being extra drippy, an omnipotent God would have the ability to stop the ice-cream from being extra drippy, and by golly, an omnibenevolent God wouldn't want your ice-cream to be extra drippy.
4. Although you've memorized a half a dozen proofs that He doesn't exist, you still think you're God's gift to the ignorant masses.
5. You believe the astronomical size of the universe somehow disproves God, as if God needed a tiny universe in order to exist.
6. You think questions like, "Can God create a rock so big that He cannot lift it?" and, "Can God will Himself out of existence?" are perfect examples of how to disprove God's omnipotence and ultimately how to disprove God. When someone proves to you the false logic behind the questions (i.e. pitting God's omnipotence against itself), you desperately try to defend the questions, but then give up and go to a different Christian site to ask them.
7. Related to the above, you spend a great deal of your spare time writing to Christian websites asking them these very questions.
8. You declare on a public forum that you are "furious at God for not existing."
9. You spend hours arguing that a-theism actually means "without a belief in God " and not just " belief that there is no god" as if this is a meaningful distinction in real life.
10. You consistently deny the existence of God because you personally have never seen him but you reject out of hand personal testimony from theists who claim to have experienced God as a reality in their lives.
11. You can make the existence of pink unicorns the center-piece of a philosophical critique.
12. You insist that "the burden of proof is on he that alleges/accuses", and "it's impossible to prove a negative", then state "That's what Christians do. They lie. Their most common lie is that they were once atheists." When reminded about the burden of proof bit, you reply with, "Well, prove Christians don't lie!"
13. You adamantly believe that the "God of the gaps" idea is an essential tenet of orthodox Christian faith espoused by all the great Christian thinkers throughout history.
14. When you were a child, someone came down with a deadly disease and prayed and prayed for God to take it away. God did not remove the disease and your friend died. You ask other Christians why they had to die when they were such a nice person and never harmed anyone. Dissatisfied with their answers, you suddenly decide that there is no God and that all Christians are nothing but lying, conniving con artists and hypocrites....all that is except for your friend who died.
15. You call a view held by less than ten percent of the American public "common sense".
16. You're a spoiled fifteen year old boy who lives in the suburbs and you go into a chat room to declare that, "I know there is no God because no loving God would allow anyone to suffer as much as I...hold on. My cell phone's ringing."
17. You attack your fellow atheists, who hold the "belief that there is no god", calling them "liars," and state that, "I do not deny the existence of any god. I just don't believe in any." Then you tell someone that their God is "made up." When someone calls you on this, you state, "I never made such a claim."
18. Going with the definition of "without a belief in God", you insist that all people are born atheists, and that dogs, cats, rocks, and trees are as well. You make statements like, "My dog is an atheist. Ask him about his lack of belief."
19. You believe that if something cannot be touched, seen, heard, or measured in some way, then it must not exist, yet you fail to see the irony of your calling Christians "narrow-minded".
20. You say that there is no God and that those who believe in God do so in blind faith, yet your claim that there is no God also rests on blind faith.
21. While you don't believe in God, you feel justified on bashing God or attacking those who believe in something that you KNOW doesn't exist, fighting against or even discussing about a non-existent being are the symptoms of mental illness!
22. You complain when Christians appeal to their emotions when justifying their belief in God yet you feel justified on appealing to your emotions for lack of belief in God.

Source:
You may be a fundamentalist atheist if...., Tekton Apologetics Ministries