Former Osun State governor and current Internal Affairs minister Rauf Aregbesola is not known for moderation. He showed this trait once again last week in Ilesha when he publicly denounced All Progressives Congress (APC) national leader and former governor of Lagos State, Bola Ahmed Tinubu. Asiwaju Tinubu mentored Mr Aregbesola. But all the mentoring counted for nothing last week as the angry minister, frustrated by his failed ambition to take over the Lagos APC machinery and the Osun APC leadership, denounced his mentor in unprintable, venomous terms. He believes he has solid grounds for dism…