Adam Sandler as a bloody surgery patient completely breaks SNL cast

How best to signal to an audience that a sketch is about to go off the walls? You throw Adam Sandler's sliced artery on the operating table. Literally.

In a surprise appearance on this week's episode, Sandler is the unfortunate, tropical shirt-wearing victim of a baffled surgical team led by Saturday Night Live host Chris Rock.

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There's blood everywhere...