Here is a great video about therapeutic clowns and how they help Israeli children suffering in hospitals (there are several such organizations around the world, all started following the powerful example of Dr Hunter (Patch) Adams from the Gesundheit Institute). You will see medical doctors express their gratitude to and appreciation for what these clowns are doing. To me it’s just a different aspect of the same thing: laughter heals, whatever modality you choose to use. Don’t focus on the finger, look at the moon.
Also of interest to this topic is this article from Hospital News “Not Just Clowning Around“.