After inviting me to join him at one of those East Side Milwaukee taverns that notoriously caters to those who like to imbibe in excess — an offer that I subsequently decline respectfully, Mike shows up in my waiting room later that same day. Like a handful of “special” clients, he maintains a walk-in status at the clinic and is not expected to make appointments. On the surface, he has a menacing appearance: a pockmarked face and the black-brown eyes of a shark. He is kn