A couple of nights ago I dreamed of visiting the bar from Cheers (and I'm anything but a bar-hopper); an episode of Sesame Street with Bert singing a lugubrious song while under a guillotine.
My cold was pretty bad so I still couldn't sing for the opera rehearsal. But I came to go through the stage motions. (I left early.) I felt ashamed not being able to contribute to the chorus since I know Giuseppe depends on chorus members like me.