The first rule of a Childrens Hospital wine tasting event is, you do not interrupt a Childrens Hospital wine tasting event. That’s a lesson poor Henry Winkler will learn the hard way in the following exclusive first look at this Thursday’s episode of the Emmy-winning Adult Swim comedy.

VIDEO | Childrens Hospital — Feud With NTSF:SD:SUV::

Press PLAY below to find out what happens when The Fonz’s Sy reveals that a darned medical emergency is about to come between Megan Mullally’s Chief and a glass of vino.