Uncle O'Grimacey! This year there hasn't been any advertising for that horror of horrors, the Shamrock Shake. But curiosity got the best of me. I headed over to the local McDonalds and ordered one up. The employees gathered to stare at me the way people do when I ask for my tacos extra spicy or I'm about to eat something like pig's ears. I heard one of the employees mumble to the other, "Did......