Haha.
Interesting...most seem to be Christians who are posting (beside one and Anhii).
Can't break the pattern can i?
I too am a Christian. I agree with both of my fellow Christians.
I feel as though I need to share my faith. For me it is simply this:
If you found out something absolutely amazing (Like the cure for cancer or something) and it would save lives, would you stay silent?
For me it is a definate no. You see, if I didn't share my faith I would consider myself very selfish. On the other hand it definately depends on how it is done. I prefer to do it one on one with those that are willing to listen. Obviously in your case, some one telling you about God is not going to change your opinion as of now, so it will not be helpful. I think Christians should always be aware of whether or not the conversation will drive the person towards or away from Christ.
Also you asked how you can know your religion is the one true one. For me there is a lot of proof. If you are genuinely interested checkout
www.creation.com. It has lots of compeling evidence, also the Bible of cource. I know alot of people say it is unreliable, however there are so many different witnesses that wrote that one book (way over three, which is what you need in a court of law). Not many other religious books can say as much. The Dead Sea scrolls also helped show the accuracy. The Bible was written over two thousand years ago (most people agree with this I believe). It has stayed the same, in between 1947 and 1956people found the old scrolls and they were 99% accurate (sometimes small words like "the" and "and" were re-arranged, meaning was still the same). This helps prove that the Bible is still the same as when it was written, which is pretty amazing. If you want to look into this as well checkout:
http://www.centuryone.com/25dssfacts.htmlI also just want to say sorry about your experience, while the person my not be meaning to, obviously they have offended and annoyed you, so yeah sorry that that happened.