Some people may find this interesting. Apparantly evangelists actually see prayer on behalf of others, as a fundamental aspect of their mission to convert.

Evangelism and Prayer

In fact I was looking for material on the role of 'healing' prayer in evangelical Christianity. But I just kept finding pages about the importance of praying for people in order to convert them...

And for those who still believe that 'just a prayer' is quite innocent, and in no way an isidious, underhanded tactic for promoting their evangelical mission to convert others, an interesting quote from Rev. Cory Kloth in Meshereth Magazine, might be illuminating:

Methods of Evangelism

I'm with Diane on this, I don't like hawkers of any kind of unsolicited tat knocking on my door. I think I'm going to put up one of those 'No Hawkers' type messages.