Mic Mistakes/ Editing Mistakes

Has anyone else noticed sometimes in scenes where there is someone in the background pretending to talk, they're accidentally miced up or someone forgot to remove the audio and you can hear them whispering their fake convo?
I'm rewatching the show rn and I remember this happening at least a couple times with Jenna. In this scene, it's really noticeable and made me giggle, Jenna talking to a group of people while Emily is watching her.
S3 E5 5:24 - 5:50