Recently I purchased this hat from Life, Liberty, Etc.
While at a hotel on business recently, I was wearing the hat, and it caused one of the hotel employees to approach me. I learned she was raised Muslim, but had converted to Christianity. She asked me why I would wear such a hat, and asked me if I knew what it meant.
The word on the hat is "kafir" - or as we commonly know it, "infidel."
I answered that I knew I was an infidel according to the Qur'an, as I do not believe in Allah. I believe in Jehova (YHWH in the Jewish tradition), whose son is Jesus, the Christ. Some Muslims (this person included), feel that the god of the Islamic tradition is the same - the God of Abraham, Moses, and Jesus. However, Islamic tradition holds that other religions (Judaism, Christianity) who "share the same God" are wrong, or somehow incomplete, since Mohammed is the final prophet and the Qur'an is their sole source of authority.
In other words, they think the Bible is incomplete and inaccurate.
By definition, that is not true - if I am to follow Christian faith (which says clearly that the Bible is God's word), then I must believe that the Bible is entirely true. Furthermore, to say that the Bible is inaccurate and that the Qur'an is the only true message from God would dispel what Jesus himself said: "I am the Way the Truth, and the Life. No one comes to the Father except through me." (John 14:6)
There is no getting to heaven through Allah.
This person could not argue my logic, so then she resorted to stating that in Arabic, the word "kafir" means the same as the English "atheist." Not entirely true. Furthermore, the "infidel" is seen as an enemy to the Muslim. The Qur'an instructs the Muslim to fight the infidel that cannot be turned to Allah.
She also stated that the Arabic word "Allah" was simply "god" - and did not refer to a specific god. This is equally incorrect.
She also stated that Muslims are not really taught that Jews and Christians are infidels. This, too, is equally incorrect (link from their own wiki!)
Since I do not (and will never) believe in the Muslim Allah,
And since I know this, and they have a term for someone like me - "kafir"
It is only fitting that I do indeed match their (Muslim) description of the word "kafir" - or "infidel." Since I am unabashedly Christian, and glad for my salvation through the Grace of God, it pleases me to no end to say:
I am an infidel by their (Muslim) definition of the word.