There were plenty of varients on this knocking around Oxford University rugby circles during the 1980s.

While writing out his answer in the history schools   (exams)
Craven had the largest of the exposed tools
The proctor said to Craven that you must confess..
it is wrong to masturbate in academic dress

He went to Eton College for term or two
He rogered all the masters and the prefects too
Until at last he was expelled, or so they say..
for rogering the Duke of York on founders day