You know how actors sometimes read off cue cards in terrible shows? You know how the scripted dialogue on said cue cards will include some instructional asides, like:
JOHNNY:”You are tearing me APART, LISA!” (hysterical)
SAMUEL L: “English, motherfucker, do you SPEAK it?” (angry)
HERCULES: “Wait a minute… This isn’t my world.” (dissapointed)
He thought it was dialogue. He thought he was supposed to say ‘disappointed’ and he damn well gave it his all, folks. This man must have been a delight to work with.