Cantankerous customers to retail workers are like fleas to rabid dogs. Staff in stores are already ground down by the cogs of consumerism, underpaid and overworked. And then these pompous and vile creatures add their bile to the already potent misery mix, ruining what promised to be just a regular pity-filled shift of unhappiness. If you are one of the people who feel the need to go into stores and do things that annoy the staff, it is time for you to take a good hard look at your life and ask yourself some soul-searching questions. And frankly, after exploring…