An open source program with a copy protection scheme where in order to launch you must refer to your copy of the GPL and answer questions about it.

"What is the fifth word of GPLv3, '3. Protecting Users' Legal Rights From Anti-Circumvention Law.'?

* 'Granted'
* 'Work'
* 'Circumvention'
* 'Deemed'"

@mcc is there anyone under the age of 40 who gets this joke? or is the cut-off older?
@jdblair @mcc /me raises hand, as gap narrows by the day