Continuity mistake: When Lisa and Beth are talking in the break room there is a clipboard with a corner on a red folder. When Beth leaves they are now next to each other.
Continuity mistake: Catherine is seen walking into the booth. A few seconds later when Joe ask Beth "to come here" she is not in the booth.
Continuity mistake: At the beginning of the episode when Bill goes into the booth there is a guy that walks out, he is seen walking down the stairs twice.