WTF? A "Christian" telling someone else they are going to hell?

Every time I hear a variation of this story, I get angry:

* Christian finds out someone else isn't baptized.

* Christian goes on to tell the person how they will burn.

* Christian is not apologetic or explains position

* Christian is smug and walks away not even knowing what they did was very not Christian-like.

(based on a true story that happened to one of the few people I consider a true friend this week)

I get angry at the so-called Christian who put themselves up on a pedestal above those they perceive not only as non-Christians, but lesser-Christians.

I am angry at their arrogance that they would tell a stranger, a waitress in a pub, that she is going to hell.

I am angry at their ignorance of the scope of God's love, which is obvious when they tell said waitress she also has condemned her son to hell.

I am angry that this "Christian" would dismiss and try to invalidate in front of God a marriage of love, mutual respect, and deep commitment based on some assumptions the patron has made.

I am angry that non-Christians (or nominally religious people) have more encounters with these types of "Christians" ( do I have to keep calling them that?) rather than ones who can share The Light with them.

I am angry that this "Christian" thinks they know enough to know the mind of God.

I am angry that this patron of the pub, I think, exemplifies what most non-religious people think of Christians.

I am angry.

I am embarrassed.

(maybe there is some irony in me implying the "f" word in my title and calling myself a Christian, but that is not directed at someone, and is strictly between God and myself)