Please don't list this on a work's page as a trope. Examples can go on the work's YMMV tab.
Tear Jerker: Christmas Who
Spongebob crying when the entire town is mad at him for wasting their night, and Santa not showing up. Squidward starts making fun of him while he cries, only for Spongebob to give him a present that he made himself for Squidward, so that he wouldn't feel left out when Santa came. Cue donkey head on Squidward.