Apparently, self-proclaimed “public relationalist” Mick Robbins was nonplussed about last weekend’s Sonoma Jazz Plus event. It wasn’t the thumping and wumping of the live music acts’ amplifiers that rattled the windows of his mobile “PR Unit” (a van parked at Depot Park where he camps with animal rights activist-turned-“adventure-meats”-advocate Paul-Henri Moreau), but the fact that…