Quite a few times, actually. Most of the times were Christians, other times Mormons, and I recall a persistent little fellow who just couldn't bear the fact that I don't want to join the Krishna believers. But most of the time were Christians. Some of them even cursed me tod damnation, and said that I'll go to Hell for telling them that I believe in quite a few things (I believe in my friends, I believe in myself, I believe that if I make the right choices in life, I can make a huge difference, and also believe in free will), but none of them were their god, and its divine guidance.
The strange fact is, that even considering these above, I do not consider myself an atheist, but I had to wait for the right type of religious people I can have perfectly fine discussions about religion, and everything else too. Some of my best friends now are actually religious, and they never forced me to see everything my way. They respect my beliefs, and I also respect them too. But that doesn't mean we can't share our opinions about each other's beliefs.