1) That no doctor in NYC would do a check-up on Elaine due to Elaine being just a tad difficult in the past.
2) That rarely do we ever see Jerry's other neighbors (the only ones we see often are Kramer and Newman)
3) that two people would almost end their marriage based on George's "you're too good for him" phrase.
4) that Benya who was suppose to have a free meal at mendi only orders soup (because he ate earlier). The problem with Benya is that he shouldn't have gotten full before the dinner date with Jerry. All Jerry needed to say to Benya is "you're a moron, you're already full, why, why are we having dinner tonight, couldn't you have eaten at a different time". A sidenote: why would Jerry want to be Benya's mentor if Jerry really detest Benya ( I don't see any merit to helping Benya be a better comedian).
Please bring the soup nazi and the bizzaro boys back in future episodes (those episodes were gold, they were really gold).