I encountered an amusing anecdote

in yerushalmi shabbos, the sixth perek, halacha 1, last week.

The context is the prohibition/permissibility of teaching one's children Greek.
R Abahu said in the name of R Yochanan: A man is permitted to teach his daughter Greek for it is an adornment (tachshit) for her.
Shimon bar Bo heard and said: Because R Abahu wishes to teach his daughter Greek he attributed (this statement) to R Yochanan.
R Abahu heard and said, (Such and Such) should come upon me if I did not hear it from R Yochanan.