Nothing quite compares to that first stroke of chalk on a pristine blackboard. The perfect friction, the satisfying sound, the way the lines appear crisp and bright against that void of darkness... it's the academic equivalent of a religious experience. Sure, romantic encounters are fine I guess, but they don't leave you with that smug satisfaction of defiling educational equipment that's been scrubbed to perfection. Only true teachers and professors understand this peculiar pleasure - it's our version of a forbidden fruit.