The ending of "Ft. Ghost Child" definitely counts. Luke has to tell George, the Ghost Child that he won't see his mother again in this world and that he has to go into the light, or "go to sleep" as he puts it.This and the beautiful score combined with the recording of the Ghost Child's singing is just heartbreaking. And at the end Luke looks absolutely devastated by this.
http://tvtropes.org/pmwiki/pmwiki.php/TearJerker/SurrealEstate
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