My supervisor at work and I constantly go at each other, with what we call "witticism." I learn a lot from my supervisor.
One day at work, I was very hyper and at my mischievous best. My supervisor labeled me "a demented," in front of few other colleagues.
I consider him my mentor teaching me many things in life... I (with my basic-mischievous-instinct) immediately replied and labeled him a "dementee-mentor". Hence the new title el mentor - dementee-mentor.