Lloyd Braun comes back from the insane asylum. Kramer takes him under his wing and convinces Jerry to buy gum from him and wear glasses that don't belong to him to prove that Lloyd isn't crazy. George tries to prove to his old neighbor Deena that he isn't crazy after a cashier short changes him. Written by
Did You Know?
First dialogue and credited appearance for Ruth Cohen
as the self named cashier Ruthie Cohen at Monk's Diner. At this point Cohen had already been visible as the cashier in over 50 episodes since the season 4 opening episode, basically every episode which features the diner, and uses the camera angle across the table, that shows the register. Cohen would go on to have short dialogue two more times, a credited appearance in one of those episodes, but in total she appeared in 101 episodes, making her by far the most frequent character in Seinfeld, besides the main four. See more
This isn't mine
, the institute gave it to me! The institute!