I disagree. If someone can be truly pragmatic for a moment and consider the reasoning and outcome of why they are hurting themselves, many times breaking it down logically to the point your feelings can be put into a few mild sentences can really remove the edge of those feelings and shed a little ironic/comedic light on them. But that's not generally something another person can influence in you, it's something you need to learn to do yourself.
But yeah, breaking down the irrational into it's logical parts can be a powerful tool for laughing at your pain if you have thew wherewithal to look at it logically.