Limerick

A Maths Master, teaching at Rye,
Bought his pupils a succulent π.
But we’re sorry to state
That 3/8
With 6=7 knows why.

Punch, Sept. 29, 1937, via William R. Ransom, One Hundred Mathematical Curiosities, 1953

(I read this as “three overate, with sick sequels, heaven knows why.”)