Right On/Right Off
Otherwise known as Catch-22 579268b.
Approach a male friend, and make him agree, for the purpose of this conversation to use the phrase "Right On!" to signify "Yes", and to use its logical opposite, "Right Off", to mean "No".
Next, ask a series of fairly benign yes/no questions, for example:
1/ "Is your name [their name]?"
2/ "Have you ever got in trouble with the headteacher?"
3/ "Have you ever kissed a girl/[insert girls name]?"
Finally, ask "have you ever pulled a boy's willy off?"
written by excluded pupil, approved by Log