It's been a while...     HALF BREED PETE  and  the RHUBARB PIE                                        One springtime many years ago, Hank and I decided we were long overdue for a visit to our ol’ pard, Half Breed Pete.  So, after a warning phone call, we packed up our toys and toothbrushes and hit the road for the drive from Pacifica to San Luis Obispo.        Several hours later, we found ourselves at Pete’s girlfriend’s house in Los Osos.  We’d never met Chri