Anyone notice that Haranishi was acting a little odd? Like he was distracted or in a bad mood.
I didn't especially notice Haranishi being distracted, but Matsumoto mentions that Fujimoto has an odd look on his face ("like he's scheming to make money") early in the episode.
Additionally, he also notes that Endou looks funny before he starts to sing.
I think the pressure to perform these stunts was getting to everyone.