I commented on Patrick's earlier thread about tricks with water, and I was thinking about tricks that involve fire. I know a few simple ones, but I also recently learned about a chem reaction where any object coated with dish soap will not catch fire. I rubbed a small amount on a paper plate, and it would not light. I was wondering if anyone knows of any tricks in which this reaction (or, technically, non-reaction) would be practical yet powerful. Thanks, folks!