Two boys, not students at this yeshiva, are walking by the Yeshiva tennis courts with a disappointed look on their face.
The Rosh Yeshiva asks them what is the problem. They had intended to play tennis, but when they got to the court saw the sign:
Yeshiva Students Only
No Visitors Allowed
Completetly without punctuation.
The Rosh Yeshiva, who is used to reading, interpreting and analyzing texts without punctuation, tells the boys they may play tennis there. He says that the sign he saw, actually read:
Yeshiva Students Only?
No! Visitors Allowed.