Question to Atheists... Would you think twice if you knew I was a Christian?

I respect your opinions, as well as your responses, as they are the most colorful on Y!A. However, I wondered to myself if any of you would think twice if you had a "Christian" radar... I'm not saying that you would go so far as to not piss on my guts if they were on fire, but would you reconsider simply asking for the time, or saying "good morning" based on my religious leanings?